How many moles of phosphoric acid would be needed to produce 15 grams of water?

The ionic and net ionic equation for HCl + Mg(C2H3O2)2 ⇒ MgCl2 + HC2H3O2 is H⁺ + Cl⁻ + Mg⁺ + C₂H₃O₂⁻ → Mg⁺ + Cl₂⁻ +  H⁺ + C₂H₃O₂⁻.

Ionic equations are chemical equations that only show the ions involved in a chemical reaction. In other words, ions that combine in solution to form new substances. The ions that do not participate are referred to as spectator ions.

A net ionic equation depicts only the chemical species involved in a reaction, whereas a complete ionic equation depicts the spectator ions as well.

Thus,  H⁺ + Cl⁻ + Mg⁺ + C₂H₃O₂⁻ → Mg⁺ + Cl₂⁻ +  H⁺ + C₂H₃O₂⁻ this is the net ionic equation.

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The terms that best describe the isomeric relationship between staggered and eclipsed ethane are B: "conformational, achiral, diastereomers."

An isomeric relationship refers to the relationship between two or more chemical compounds having the same molecular formula but differing in the arrangement of their atoms. Isomers can be classified into different types such as structural isomers, stereoisomers, and conformational isomers based on the differences in their molecular structure.

In the context of this question the isomeric relationship between staggered and eclipsed ethane is described as "conformational, achiral, diastereomers.

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Answer:

18.8 g

Explanation:

The equation of the reaction is;

AgClO3(aq) + LiBr(aq)------>LiClO3(aq) + AgBr(s)

Number of moles of AgClO3 = 117.63 g/191.32 g/mol = 0.6 moles

Number of moles of LiBr = 10.23 g/86.845 g/mol  = 0.1 moles

Since the molar ratio is 1:1, LiBr is the limiting reactant

Molar mass of solid AgBr = 187.77 g/mol

Mass of precipitate formed = 0.1 moles * 187.77 g/mol

Mass of precipitate formed = 18.8 g

If in a solution reaction between 117.63 g of silver chlorate and 10.23 g of lithium bromide takes place then, 18.8 grams of solid precipitate will be formed.

In any chemical reaction limiting reagent is that reagent whose moles are present in less quantity as compared to the other reagent, is responsible for the formation of product.

Given chemical reaction is:
AgClO₃(aq) + LiBr(aq) → LiClO₃(aq) + AgBr(s)

Moles (n) will ce calculated as:

n = W/M, where

W = given mass

M = molar mass

Moles of AgClO₃ = 117.63g / 191.32g/mol = 0.6 moles

Moles of LiBr = 10.23g / 86.845g/mol  = 0.1 moles

In this reaction LiBr is the limiting reagent and formation of product depends on this.

From the stoichiometry of the reaction it is clear that:
0.1 mole of LiBr = produce 0.1 mole of AgBr

Mass of AgBr = (0.1mol)(187.77g/mol) = 18.8 g

Hence mass of AgBr is 18.8 g.

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The relationship between the amount of energy released by an earthquake and its magnitude is described by this formula is \(E = 10^{(5.24 + 1.44M)}\)

Magnitude is a unit used to describe something's size or power. It is a technique for expressing the size of an object, event, or phenomena as a number. For instance, the Richter scale is typically used to indicate the magnitude of earthquakes. Magnitude can also be used to describe a sound, force, or amount's strength or intensity. For instance, the intensity of a sound is typically measured in decibels, and the intensity of a force is typically measured in newtons. Magnitude can also be used to denote a number's size.

For a magnitude 5 earthquake, \(E = 10^{(5.24 + 1.44 \times 5)} = 10^{(10.24)} = 8.02 \times 10^9\) joules of energy.

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Answer:

1.7820210165667731 your welcome :)

Explanation:

The new pressure of the particles of heavy species of gas is 36 atm.

The correct option is B

The new pressure of the particles of heavy species of gas is determined  using the ideal gas equation as follows:

PV = nRT

where;

T is the temperature

Assuming the temperature, volume, and molar gas constant all remain unchanged, the new equation will be:

P = n

When n = 100, P = 12 atm

Ratio of n and P = 100/12

When, n = 300, P = 300 * 12/100

Pressure = 36 atm

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The result of the computation when you follow the steps is 1.699.

A logarithm is a mathematical function that represents the exponent or power to which a specific base must be raised to obtain a given number. In simpler terms, it answers the question: "To what power must we raise a base number to obtain a certain value?"

What you should do is that on your calculator, you could press the logarithm key and then put in the value that has been shown and then the result would be displayed on your calculator.

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Answer:

If the molar mass of one unit of a substance is 67.2g/mol, then the mass of 8 units will be 67.2 x 8 , which gives a figure of 537.6g/mol

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 537.6g is the mass of 8.0 mol of the substance.

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

Mathematically,

mole of given substance=given mass of given substance ÷ molar mass of given substance

Mass of given substance = Mole of given substance× Molar mass of given substance

Molar mass of given substance=  67.2 g/mol

mole of given substance=8.0 mol

Substituting the values in above formula, we get

Mass = 8.0 mol × 67.2 g/mol

Mass of given substance=537.6g

Therefore, 537.6g is the mass of 8.0 mol of the substance.

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The IUPAC name of the compound shown in the image is 4-bromo butyne.

IUPAC is a body in chemistry that stands for International Union of Pure and Applied Chemistry.

IUPAC functions in the naming of organic compounds in chemistry.

According to the image in this question, the functional group of the compound is a triple carbon bond meaning that it is an alkyne.

Bromine is attached to the fourth carbon, hence, the IUPAC name of the compound is 4-bromo butyne.

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Answer:

3 atm

1.6 g

Explanation:

Step 1: Given data

Step 2: Find partial pressure (P) of CO₂ gas

We will use Henry's law.

C = k × P

P = C / k

P = 0.1 M / 3.3 × 10⁻² M atm⁻¹

P = 3 atm

Step 3: Calculate the mass of CO₂ gas

The molar mass of carbon dioxide is 44.01 g/mol.

0.355 L × 0.1 mol/L × 44.01 g/mol = 1.6 g

Explanation:

To calculate the heat gained by nickel, we can use the formula:

q = m * c * ΔT

where q is the heat gained, m is the mass of the nickel, c is the specific heat of nickel, and ΔT is the change in temperature.

Given:

- Mass of nickel, m = 31.4 g

- Specific heat of nickel, c = 0.443 J/g · °C

- Change in temperature, ΔT = 64.2 °C - 27.2 °C = 37.0 °C

Substituting the values into the formula, we get:

q = (31.4 g) * (0.443 J/g · °C) * (37.0 °C)

Simplifying the calculation, we get:

q = 584 J

Therefore, the heat gained by nickel when 31.4 g of nickel is warmed from 27.2 °C to 64.2 °C is 584 J.

A metalloid is a type of chemical element which has a preponderance of properties in between, or that are a mixture of, those of metals and nonmetals.

Answer:

Metalloid, in chemistry, an imprecise term used to describe a chemical element that forms a simple substance having properties intermediate between those of a typical metal and a typical nonmetal. There is no single property which can be used to unambiguously identify an element as a metalloid.

Answer:copper

Explanation:edg 2021 ;)

Answer: B.) Copper

Explanation:

The piece of information that you need to determine whether a molecule is an alkyne or an alkene is D. The type of C-C bonds in the molecule

Alkenes and alkynes can be decribed as the name that is been gotten by  by identifying the longest chain that contains the double or triple bond.

It should be noted that The chain is numbered  so that theminimization of  the numbers assigned to the double or triple bond can be easy however the suffix of the compound  can be “-ene”  when regarding to an alkene or “-yne” when regarding to alkyne.

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Answer: 14.0

Explanation: 14.0 is a base. The more basic, the less hydrogen ion concentration.

ΔLatticeU = ΔLatticeH – pΔVm is the lattice energy of wurtzite.  Ionic compounds often have flat surfaces that meet at distinctive angles and are stiff, brittle, crystalline materials.

Remember that when a metal reacts with a nonmetal, often an ionic compound results from the transfer of electrons form the metal (the reductant) towards the nonmetal (the oxidant). Ionic compounds often have flat surfaces that meet at distinctive angles and are stiff, brittle, crystalline materials. They melt at rather high temperatures and are not easily distorted.   ΔLatticeU = ΔLatticeH – pΔVm is the lattice energy of wurtzite.

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I hope the answer you are looking for is 5.51L

sorry if I'm wrong

Answer:

D-60

Explanation:

Mass number =Proton number(P) + Neutron number

100=P+40

collect like terms

P=100-40

P=60

Avoid emulsion by salting-out effect

Extraction is a separation process which deals with the separation of a substance from a matrix.

Sodium chloride (NaCl) is important during the extraction process. The addition of salt to the aqueous layer during extraction increases the surface tension of the droplets thereby causing an increase in density of the aqueous layer which in turn forces a separation.

If water is being used as a solvent during the extraction process, the addition of saturated NaCl helps to destroy the emulsion effect. Due to the salting-out effect, NaCl increases the polarity of the water molecules thereby facilitating the separation from other solutes in a solute-solvent system.

Based on the explanation above, we can conclude that the role of adding NaCl to the aqueous layer while performing extraction is to avoid emulsion by salting out effect.

This does not disprove the law of thermodynamics because energy was lost to the environment as heat

The first law of thermodynamics, also known as the law of conservation of energy, states that energy cannot be created or destroyed, only transferred or converted from one form to another.

In other words, the total amount of energy in a closed system remains constant over time. This law is a fundamental principle of physics and applies to all forms of energy, including mechanical, electrical, chemical, and thermal energy.

ΔU = Q - W

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Answer:

B: All of the choices!

Explanation:

Choice 1: Simply, there is no current without voltage, so it DOES cause current.

Choice 3: Voltage DOES push free electrons around a circuit. Without it, free electrons will move around between atoms, but randomly, so they wouldn't be much use.

Choice 4: Voltage IS measured in volts, so this option is true as well.

Choice 2: Voltage is all of those answers, so it is true! :D

Hope i helped! :]

Answer:

Its B! :D

Explanation: I got it correct!

The number of solute (stock solution) needed are 15 mL solute and the number of solvents (water) is needed 10 ml. The correct option is a.

Molarity is the measure of the concentration of any solute per unit volume of the solution.

Given that the 25 mL of a 60 mg/mL solution

Dose in hand = 0.5 g / 5ml =

500 mg / 5ml = 100 mg/ml

D= 60 mg x 25 = 1500 mg

Molarity = n / V

1500 mg / 100 mg/ml = 15 ml solute

The number of solutes then minus by the total stock supply

15 - 5 ml = 10 ml solvent

Thus, the correct option is a. 15 mL solute; 10 mL solvent.

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Answer:Molecular Formula SO2

Hybridization Type sp2

Bond Angle 119o

Geometry V-Shaped or Bent

Explanation:

hope this helped <3

The sand absorbed869,034.8 Joules of energy from the sun to raise its temperature from 14°C to 31°C.

To calculate the energy absorbed by the sand, we can use the formula:

Q = m * C * ΔT

where:

Given:

Mass of the sand (m) = 58.2 kg = 58,200 g (since 1 kg = 1000 g)

Specific heat capacity of the sand (C) = 0.742 J/g°C

Change in temperature of the sand (ΔT) = 31°C - 14°C = 17°C

Plugging in the values into the formula:

Q = 58,200 g * 0.742 J/g°C * 17°C

Q = 869,034.8 J

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The time taken by the car driving at 10m/s to move 200m is 20 seconds. The speed of car is 10m/s. Thus option C is correct.

Speed is defined as a measurement of the length of time it takes for an object to travel a certain distance.

The SI unit of speed is m/s, and speed is defined as the ratio of distance to time.

A change in speed is an example of acceleration because it is a change in velocity. Acceleration could be for positive or negative. Deceleration is another name for negative acceleration.

There are four types of speed.

Speed can be expressed as

Speed = Distance / Time

Given, Distance = 200 m

           Time = 10 m/s

Speed = 200m / 10m/s

           = 20 seconds

Thus, the time taken by the car driving at 10m/s to move 200m is 20 seconds. The speed of car is 10m/s. Thus option C is correct.

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The amount of SO₂(g) in the reaction vessel has a lower value compared to its value at the original equilibrium. Option d is correct choice.

Injecting pure O₂(g) into the reaction vessel at a constant temperature will cause the system to shift towards the right side of the equation in order to consume the added O₂. This means that the amount of SO₂(g) in the reaction vessel will decrease, while the amount of SO₃(g) and O₂(g) will increase.

Since the reaction is exothermic, adding O₂(g) will not change the equilibrium constant (Keq) of the reaction, so (A) is not affected. However, the amount of O₂(g) in the reaction vessel will increase, so (C) has a higher value compared to its value at the original equilibrium.

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--The complete question is, 2SO(g) <-> 2SO₂(g) + O₂(g)

After the eq. represented above is established, some pure O₂(g) is injected into the reaction vessel at a constant temperature. After equilibrium is reestablished, which of the following has a lower value compared to its value at the original equilibrium?

A. Keq for the reaction

B. The amount of SO₃(g) in the reaction vessel

C. The amount of O₂(g) in the reaction vessel.

D. The amount of SO₂(g) in the reaction vessel.--

The mass, in grams, of 532.0 atoms of cadmium is 9.93 × 10⁻²⁰ g

From the question, we are to determine the mass of the given atoms of cadmium

First, we will calculate the number of moles of cadmium present

Using the formula,

\(Number\ of\ moles = \frac{Number\ of\ atoms}{Avogadro's\ constant}\)

Then,

Number of moles of Cd present = \(\frac{532.0}{6.022 \times 10^{23} }\)

Number of moles of Cd present = 8.83427 × 10⁻²² moles

From the given information,

1 mole of Cd has a mass of 112.41 g

Therefore,

8.83427 × 10⁻²² moles will have a mass of 8.83427 × 10⁻²² × 112.41 g

8.83427 × 10⁻²² × 112.41 = 9.9306 × 10⁻²⁰ g

≅ 9.93 × 10⁻²⁰ g

Hence, the mass, in grams, of 532.0 atoms of cadmium is 9.93 × 10⁻²⁰ g

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Answer:

CaCl2

Explanation:

Cacl2 would have greatest freezing point depression because in this case the vant Hoff factor is 2

More will be the value of vant Hoff factor more will be the depression in freezing point when concentration of all electrolyte is same

The pressure inside the tire is approximately 1.970796 newtons per square centimeter (N/cm²) when measured in those units.

To convert the pressure from pounds per square inch (psi) to newtons per square centimeter (N/cm²), we need to use the conversion factors between these units.

First, let's convert pounds to newtons:

1 pound = 0.45359237 kilograms

1 kilogram = 9.80665 newtons

Next, let's convert square inches to square centimeters:

1 square inch = 6.4516 square centimeters

Now, we can perform the conversion:

1 psi = (0.45359237 kg) × (9.80665 N/kg) / (6.4516 cm²)

≈ 0.070307 N/cm²

Therefore, the pressure inside the tire of 28.0 psi is approximately equal to 28.0 × 0.070307 N/cm², which is approximately 1.970796 N/cm².

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