if 12l of a 45% acid solution are mixed with 8l of a 70% acid solution, what percentae of acid will me present in the mixture?

Answer:

good times

Explanation:

always nedded

Here the nuclear decay of phosphorous to give S-32 is an example of beta-decay. Hence, the emitted particle is an electron. Thus, option b is correct.

The heavy unstable radioactive isotopes undergo nuclear decay by the emission of alpha or beta particle. Thus, there are mostly two types of decays, alpha decay and beta decay.

In alpha decay, the isotope emits a helium nuclei. Hence, mass number decreases by 4 units and atomic number decreases by 2 units. In beta decay, mass number does not change but atomic number increases by 1.

Here, P-32 undergo beta -decay by emitting an electron to form S -32. Hence, atomic number is increased by one. Therefore, the mission product is an electron option b.

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(A) Physical state : Thin liquid

B) Routes of exposure and symptoms

Inhalation: Exposure to vapor or mist may irritate respiratory tract and cause coughing. Inhalation of high concentrations may cause pulmonary edema.

A safety data sheet, also known as a material safety data sheet or product safety data sheet, is a document that contains details about workplace safety and health when using various substances and goods.

A Safety Data Sheet is a thorough informational document created by the maker or importer of a hazardous substance (formerly known as a Material Safety Data Sheet). It provides information on the product's physical and chemical characteristics.

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Answer:

uhm i believe its D hope i helped

Explanation:

Answer:

D. decomposers

The primary goal of the carburetor is to atomize and vaporize the fuel before mixing it with air in varying proportions, making it the device that is used for atomizing and vaporizing the fuel before mixing it with air in varying proportions.

The device that is used for atomizing and vaporizing the fuel before mixing it with air in varying proportions is Carburetor. A carburetor is a device that blends air and fuel for an internal combustion engine. It is often located on the top of an engine on a direct engine-to-carburetor link, and it controls how much air and fuel are mixed.The carburetor must also supply the engine with a spark plug to ignite the fuel/air mixture in each cylinder.

The carburetor must provide a fuel/air mixture that is consistent with the engine's changing demands, which vary with engine speed, load, and temperature. A carburetor is responsible for enriching the fuel/air mixture when the engine is cold and for leaning the mixture as the engine warms up. As well, it is also responsible for regulating the fuel/air mixture at part-throttle levels, where the engine spends most of its time when driving.

When an engine is running at full throttle, it is operating at wide-open throttle (WOT), and the carburetor provides the richest fuel/air mixture possible.The carburetor, like most engine systems, is a complex and sensitive device that must be correctly tuned to perform properly. The primary goal of the carburetor is to atomize and vaporize the fuel before mixing it with air in varying proportions, making it the device that is used for atomizing and vaporizing the fuel before mixing it with air in varying proportions.

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Answer:

a. 0.02 moles  of NH₃, 0 moles of O₂, 0.08 moles of NO, 0.12 moles of H₂O

b. \(P_{NH_3}\) = 12,576.5 Pa, \(P_{NO}\) = 50,306.05 Pa, \(P_{H_2O}\) =  74,459.1 Pa

c. The total pressure is 138,341.64 Pa

Explanation:

a. NH₃ + O₂  → NO + H₂O

The balanced chemical equation is first found to be

4NH₃ + 5O₂  → 4NO + 6H₂O

Therefore, we have;

4 moles of NH₃ reacts with 5 moles of O₂ to form 4 moles of NO and 6 moles H₂O

Dividing by the reactant with the highest number of moles which is 5 moles of oxygen gives;

4/5 moles  of NH₃ reacts with 5/5 moles of O₂ to form 4/5 moles of NO and 6/5 moles H₂O

Which is the same as 4/5 moles  of NH₃ reacts with 1 mole of O₂ to form 4/5 moles of NO and 6/5 moles H₂O

Multiplying by 0.100 gives;

0.1×4/5 moles  of NH₃ reacts with 0.1 mole of O₂ to form 0.1×4/5 moles of NO and 0.1×6/5 moles H₂O

The quantity of each gas in the container upon completion of the reaction is therefore;

(0.1 - 0.1×4/5) = 0.02 moles  of NH₃

0 moles of O₂

0.08 moles of NO

0.12 moles H₂O

b. Given that the temperature = 105°C, we have;

PV = nRT

P = nRT/V

Where:

n = Total number of moles = 0.02 + 0.08 + 0.12 = 0.22 moles

R = Universal gas constant = 8.3145 J/(mol·K)

T = Temperature = 105°C = 378.15 K

V = Volume = 5 litre = 0.005 m³

P = 0.22×8.3145×378.15/0.005 = 138,341.64 Pa

From Dalton's law of partial pressure, we have;

Partial pressure Pₓ = Xₓ × P

Where:

Xₓ = Mole fraction

Which gives for ammonia NH₃ with 0.02 moles;

Mole fraction = 0.02/0.22 = 1/11

\(P_{NH_3}\) = 1/11 × 138,341.64  = 12,576.5 Pa

For the 0.08 moles of NO, we have

Mole fraction = 0.08/0.22 = 4/11

\(P_{NO}\) = 4/11 × 138,341.64  = 50,306.05 Pa

For the 0.12 moles H₂O

P = 0.12×8.3145×378.15/0.005 = 74,459.1 Pa

Mole fraction = 0.12/0.22 = 6/11

\(P_{H_2O}\) = 6/11 × 138,341.64  = 74,459.1 Pa

c. The total pressure = 12,576.5 Pa + 50,306.05 Pa + 74,459.1 Pa = 138,341.64 Pa.

Answer:

The answer is

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

Density of aluminum = 2.00 g/mL

volume = 29.8 mL

The mass is

mass = 2 × 29.8

We have the final answer as

Hope this helps you

The IUPAC name for CH3-CH2-CH2-SH is 1-propanethiol. The IUPAC system of nomenclature is used to name organic compounds based on their structural formula. In this case, the compound has three carbon atoms in a continuous chain, which is called a propane chain. The suffix "-thiol" indicates the presence of a sulfhydryl group (-SH) attached to the first carbon atom of the propane chain. Therefore, the correct IUPAC name for this compound is 1-propanethiol. The other options given in the question are incorrect because they either have the wrong number of carbon atoms in the chain or the wrong position of the sulfhydryl group.

In conclusion, the IUPAC name for CH3-CH2-CH2-SH is 1-propanethiol. This name is derived from the three-carbon propane chain and the presence of a sulfhydryl group (-SH) attached to the first carbon atom, which is indicated by the suffix "-thiol". The other options given in the question are incorrect because they do not follow the IUPAC rules for naming organic compounds.

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If one can of diet soda contains 180 mg of aspartame, c14h18n2o5 then it contains 7.3 x \(10^19\)nitrogen atoms.

The molar mass of aspartame, C14H18N2O5, is 294.304 g/mol. In one can of diet soda, there are 180 mg of aspartame, which is equivalent to 0.18 g.

So, the number of moles of aspartame in the can of soda is 0.18 g / 294.304 g/mol = 6.09 x \(10^-5\) moles.

The number of nitrogen atoms in aspartame is 2.

So, the number of moles of nitrogen atoms in the can of soda is 6.09 x  \(10^-5\) moles * 2 = 1.22 x \(10^-4\) moles of nitrogen atoms.

To convert moles to number of atoms, we multiply the number of moles by Avogadro's number, which is 6.022 x \(10^23\) atoms/mol.

So, the number of nitrogen atoms in the can of soda is 1.22 x  \(10^-4\) moles * 6.022 x\(10^(23)\) atoms/mol = 7.34 x \(10^19\) nitrogen atoms.

Rounding to the appropriate number of significant digits, the answer is 7.3 x \(10^19\) nitrogen atoms.

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Answer:

20 to 50 million

Explanation:

The pressure of gas in a container is measured using a manometer with a tolerance of 0.509 atm. The pressure of an enclosed gas is measured using an open-end mercury manometer, like the one in this image.

However, unless clearly stated otherwise, a U-shaped tube that is partially filled with fluid is what is typically meant when using the term "manometer." To demonstrate how air pressure affects a liquid column in a laboratory experiment, you can quickly construct this kind of manometer. A manometer is a gauge used in science to measure pressure. The fourth and most basic state of matter is gas (the others being solid, liquid, and plasma). A pure gas might contain a single atom (e.g. a noble gas like neon).

The pressure of gas in a container is measured using a manometer is

(354*0.975 )- 344.65 = 0.509 atm.

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A manometer with a tolerance of 0.509 atm is used to measure the pressure of gas in a container.

However, The open-tube manometer is a U-shaped tube that is partially filled with fluid, usually mercury or water. Which is commonly intended when using the term "manometer" unless it is specifically indicated otherwise. This form of manometer can be easily built to demonstrate how air pressure influences a liquid column in a laboratory experiment.  The pressure that is measured is related to the difference in height of the fluid at the two ends of the U-shaped tube.

Finally pressure of gas in a container is measured using a manometer is

(354×0.975 )- 344.65 = 0.509 atm.

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50.5 km to ft is 165682.4

Answer:

the other guy is right its 165682.415

Answer:

Coppell zinc,ironic bond

Explanation:

lt will give away two zinc atoms

Answer:

I will go with Sodium chlorine NaCl

Answer:

I think its the 3rd one

Explanation:

The elements arranged in increasing order of the most positive electron affinity for each group are:

(a) Li, Na, K

(b) I, Br, Cl, F

(c) Ba, Ca, Si, P, O

(a) Li, Na, K: In this group, the electron affinity increases as we move from left to right in the periodic table. Therefore, the elements arranged in increasing order of the most positive electron affinity are Li, Na, and K.

(b) F, Cl, Br, I: In this group, the electron affinity generally increases as we move from left to right and from bottom to top in the periodic table. Therefore, the elements arranged in increasing order of the most positive electron affinity are I, Br, Cl, and F.

(c) O, Si, P, Ca, Ba: In this group, the electron affinity generally increases as we move from left to right and from top to bottom in the periodic table. Therefore, the elements arranged in increasing order of the most positive electron affinity are Ba, Ca, Si, P, and O.

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Answer:

16% v/v es la nueva concentración de alcohol en la solución

Explanation:

El porcentaje volumen/volumen (% v/v) es definido como 100 veces la relación entre el volumen de soluto (Alcohol en este caso) y el volumen total de la solución (Agua + Alcohol). Para resolver esta pregunta necesitamos hallar el volumen de alcohol y el de agua:

Volumen alcohol:

320cc * (20cc etanol / 100cc) = 64cc etanol

Volumen agua:

80cc + (320cc-64cc) = 336cc agua

% v/v:

64cc / (336cc + 64cc) * 100

= 16% v/v es la nueva concentración de alcohol en la solución

Answer:

a high school classroom?

Explanation:

a high school classroom prob chemistry

Answer:

stem class in arezona airforce bace

tuson AZ

Explanation:

In order to calculate the percent mass/volume (m/v) concentration of a calcium chloride solution, we use the following formula: % m/v = (mass of solute (g) / volume of solution (mL)) × 100. After plugging into the values, it is found that the concentration of the calcium chloride solution is 1.6% m/v.

In this case, the mass of the calcium chloride solute is 40 grams, and the volume of the solution is 2,500 mL.

Plugging these values into the formula, we get: % m/v = (40 g / 2500 mL) × 100.

% m/v = 1.6%

Therefore, the concentration of the calcium chloride solution is 1.6% m/v.

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Answer:

Political Map. A political map shows the state and national boundaries of a place. ...

Explanation:

Nowadays, it is very important to reduce one's carbon "footprint" (how much carbon we produce in our daily lifestyles). By limiting the use of fossil fuels and instead turning to renewable sources of energy, we can significantly reduce our carbon emissions and mitigate the impacts of climate change.

One way to reduce our carbon footprint is by transitioning to renewable energy sources such as solar, wind, and hydropower. These sources of energy produce minimal greenhouse gas emissions compared to fossil fuels like coal, oil, and natural gas. Installing solar panels on rooftops, utilizing wind turbines, and supporting hydroelectric power can help generate clean and sustainable energy.

Another important aspect is adopting energy-efficient practices and technologies. This includes using energy-efficient appliances, LED lighting, and improving insulation in buildings to reduce energy consumption. Conserving energy in transportation by opting for public transportation, carpooling, biking, or walking can also make a significant difference.

Additionally, reducing waste and promoting recycling and composting can help minimize greenhouse gas emissions. Waste decomposition in landfills produces methane, a potent greenhouse gas. By reducing, reusing, and recycling materials, we can lower our carbon emissions and conserve resources.

Furthermore, making conscious choices in our daily lives can contribute to reducing our carbon footprint. This includes minimizing water usage, eating a plant-based diet or reducing meat consumption, and supporting sustainable and local products.

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The dilution of the solution, when 5 mL of pond water is added to 20 mL of saline, is 1:5. The dilution factor of the same solution is 1/5.

Dilution refers to the process of reducing the concentration of a solution by adding a solvent to it. In this case, the initial solution contains 20 mL of saline, and when 5 mL of pond water is added to it, the total volume of the solution becomes 25 mL.

To express the dilution as a fraction or ratio, we compare the volume of the solute (saline) to the total volume of the solution. In this case, the ratio of the volume of the solute to the total volume is 20:25, which simplifies to 4:5 or 1:5. This means that for every 1 part of solute (saline), there are 5 parts of the total solution.

The dilution factor is the reciprocal of the dilution ratio. So, in this case, the dilution factor is 1 divided by 5, which equals 1/5. The dilution factor represents how much the concentration of the solute is reduced in the final solution compared to the original concentration.

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Answer:

fluorine

Explanation:

Answer:

The element with the highest electronegativity is fluorine with a score of 4.0 (which is the highest possible)

Explanation:

I personally haven't gotten this question yet so I hope this helps you!

Answer:

3-phenylprop-2-enal

Explanation:

The given compound consists of a phenyl group, which is the ring

Considering the longest chain starting from the carbon atom closest to the  aldehyde, CHO, functional group, the location of the phenyl group is at the 3rd carbon atom on the longest chain

C6H5-C₃H = C₂H - C₁HO

Therefore, for the name of the branched group, we have;

3-phenyl

Based on the location of the double bond, at the second carbon atom, we have;

The name of the straight chin = Prop-2-ene

The name of the aldehyde functional group, CHO, is then added at the end by indicating its position on the longest chain, which is on the first carbon, the IUPAC name of the aldehyde functional group is -al, to give;

1-al

Combining, we get

3-phenylprop-2-ene-1-al

We remove the 1, to get the IUPAC name of the compound as follows;

3-phenylprop-2-enal

The monatomic ion most likely to be formed by each element depends on its atomic number. For example, calcium (atomic number = 20) will form a Ca2+ ion, so its ground-state electron configuration would be 1s2 2s2 2p6 3s2 3p6 4s2. This means that the calcium atom has lost its two valence electrons, meaning that all of the outermost energy levels are completely filled, up to 4s2.

Similarly, boron (atomic number = 5) will form a B3+ ion, so its ground-state electron configuration would be 1s2 2s2 2p1. This means that the boron atom has lost its three valence electrons, meaning that the outermost energy level (2p) is only partially filled.

In both cases, the ground-state electron configuration of the monatomic ion reflects the number of valence electrons that have been removed from the atom.

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For filtering particles from a 180°F gas stream containing ammonia, a suitable fabric would be PTFE (Polytetrafluoroethylene). For the 250°F gas stream containing SO₂, a suitable fabric would be P84 (Polyimide).

When dealing with a 180°F gas stream containing ammonia, PTFE fabric is a good choice due to its excellent chemical resistance and high-temperature stability. PTFE is known for its nonstick properties and resistance to a wide range of chemicals, including ammonia. It can withstand high temperatures and is capable of filtering out particles effectively.

In the case of a 250°F gas stream containing SO₂, P84 fabric is a suitable option. P84, a polyimide-based fabric, exhibits excellent resistance to acids, alkalis, and organic solvents, making it suitable for environments containing SO₂. It has good thermal stability, allowing it to withstand the high temperatures of the gas stream. P84 fabric also has a high filtration efficiency and can effectively capture fine particles.

Both PTFE and P84 fabrics are commonly used in industrial filtration applications due to their chemical resistance, high-temperature stability, and efficient particle filtration capabilities. However, it's important to consider specific operating conditions, such as gas composition, temperature, and other factors, to ensure the chosen fabric is compatible and optimized for the intended application.

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Answer:

importent factors

Explanation:

The salient facts about something or qualities of something are the most important things about them: She began to summarize the salient features/points of the proposal. The article presented the salient facts of the dispute clearly and concisely. SMART Vocabulary: related words and phrases. Very important or urgent.

Answer

The answer is a/important factors. Pls subscribe to Amiredagoat Yt in return.

Explanation:

Answer:

left/center

Explanation:

Metals including, alkali metals, alkaline earth metals, and transition metals are all located on the left/center.

hope I helped!

If the alkyne illustrated is reacted with BH₃, BH will add to the carbon marked 1 while H will add to the carbon marked 2.

Here's how:

When alkyne is reacted with BH3, it undergoes hydroboration to form an intermediate alkylborane product.

The hydrogen atom (H) adds to the carbon atom that has the least number of hydrogen atoms.

Meanwhile, the boron atom (BH₂) gets added to the carbon atom that has the most number of hydrogen atoms.

Once the intermediate is formed, it is then treated with hydrogen peroxide (H₂O₂) in the presence of a strong base such as NaOH or KOH.

The hydroboration of an alkyne will yield an alkene with anti-Markovnikov regiochemistry.

The reaction will produce a borane intermediate followed by oxidation to give an alcohol.

When alkynes are reacted with BH3, the product produced will have BH₂ added to the less substituted carbon atom of the triple bond.

The hydrogen (H) atom is then added to the more substituted carbon atom of the triple bond. Hence, the final product is 1-borovinylborane.

This reaction mechanism is summarized below:

        BH₃ + RC≡CH → RC≡C

        BH₂H → H₂O₂/OH-  → RCH=CH

 B(H)OH  with BH₂ adding to the less substituted C of the triple bond and H adding to the more substituted C of the triple bond.

Conclusion: BH₂ will add to the carbon marked 1 while H will add to the carbon marked 2 when the alkyne illustrated is reacted with BH₂.

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E) Kr, or Krypton, is the element expected to have chemical and physical properties closest to those of Argon.

Both Argon and Krypton belong to the same group (Group 18) in the periodic table, which consists of noble gases. Elements in the same group tend to have similar properties due to having the same number of valence electrons. Since Argon and Krypton are both noble gases, they share similar properties such as being colorless, odorless, and having low reactivity. They are both colorless and odorless gases at room temperature and pressure, and they are both quite unreactive, which is why they are classified as noble gases. Both argon and krypton have relatively high boiling points and melting points, and both are very stable elements.

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