6) A 0. 20 ml CO2 bubble in a cake batter is at 27°C. In the oven it gets

heated to 177°C. What is its new volume?

If a chemist adds a chemical to pure water and there is a 100-fold increase in the concentration of hydrogen ions then the best approximate value of new pH is 5.

When only pure water is there.

H₂O ⇌ H⁺ + OH⁻

pKw = pH + pOH

14 = pH + pH ( This is because the value of pH and pOH is same in water and we need to consider pH here.)

14 = 2pH

pH= 14/2 = 7

So, pH of pure water is 7.

Concentration of hydrogen ions in pure water can be calculated using the equation

pH = -log[H⁺]

7 = -log[H⁺]

[H+] = 10⁻⁷ M

So, the concentration of hydrogen ions in pure water is 10⁻⁷ M.

Now, the chemist added a chemical to this pure water such that there is   100- fold increase in concentration of hydrogen ions.

So, the new concentration of hydrogen ions is calculated as shown below.

[H⁺] = 100 ×10⁻⁷ M

      = 10⁻⁵ M

The new concentration of hydrogen ions is 10⁻⁵ M.

Now, the new pH can be calculated using the formula

pH  = -log[H⁺]

      = -log[10⁻⁵]

      = -×-5log[10]        

       = 5×1

       = 5

So, the new pH value = 5.

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Answer:

it could harbor dangerous chemicals that damage the car if released

it could be holding parts together

it could have something dangerous inside

Answer: An extensive property is a property that depends on the amount of matter in a sample. Mass and volume are examples of extensive properties. ... Color, temperature, and solubility are examples of intensive properties.

Explanation:

An intensive property of iron is density while an extensive property of iron is mass.

WHAT ARE INTENSIVE AND EXTENSIVE PROPERTIES?

Regarding iron as an element, one intensive property it posseses is density while one extensive property is its mass.

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The concentration of ammonia in the given solution is 0.0274 M.


The balanced chemical equation for the reaction between ammonia and hydrochloric acid is given by:

NH₃(aq) + HCl(aq) → NH₄Cl(aq)

The stoichiometry of the equation is 1:1. This means that one mole of NH₃ reacts with one mole of HCl.

Therefore, the moles of HCl required to react with the given amount of NH₃ is:

0.116 mol/L × 0.1000 L = 0.0116 mol

According to the balanced chemical equation, 1 mole of NH₃ reacts with 1 mole of HCl.

Therefore, the number of moles of NH₃ present in the 100 mL solution is also 0.0116 mol.

So, the concentration of ammonia can be calculated as follows:

Concentration of NH₃ = (moles of NH₃) / (volume of solution in L)

Concentration of NH₃

= (0.0116 mol) / (0.1000 L)

= 0.116 M

The concentration of ammonia in the given solution is 0.0274 M.

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Complete question is:

What is the concentration of ammonia in a solution if 22.6 mL of a 0.116 M solution of HCl is needed to titrate a 100.0 mL sample of the solution?

Answer: The amount of CO2 found in the atmosphere varies over the course of a year. Much of this variation happens because of the role of plants in the carbon cycle

Answer:

Explanation: A cubic centimetre (or cubic centimeter in US English) (SI unit symbol: cm3; non-SI abbreviations: cc and ccm) is a commonly used unit of volume that corresponds to the volume of a cube that measures 1 cm x 1 cm × 1 cm.

Answer:

Water

Explanation:

This is because it only contains one type of molecule.

Answer:

its b

Explanation:

Answer:

B. Water exhibits strong adhesion and cohesion, which allows capillary action to occur.

Answer:

There are 11 protons in a sodium atom but only 3 in a lithium atom, so the nuclear charge is much greater. ... The only factor left is the extra distance between the outer electron and the nucleus in sodium's case. That lowers the ionization energy.

Answer:

2

Explanation:

...

Answer:

orbital is the answer

I took the test

Answer:

It is at the greater angle (higher solar elevation) that the surface area receives the most energy because the rays are spread out less. ... The smaller the elevation angle (30°, 20°, 10°) the less energy received per square centimeter, because the rays spread out over a greater area.

Explanation:

correct me if I'm wrong

Answer:

earning

Explanation:

yeah its ok

Answer:

What's the question? or show a picture

Answer: look at the close because that is the answer

Explanation:

Answer:

A. all other bulbs will no longer work

Butane < acetone < 1-propanol  is a list of the compounds in order of increasing boiling points.

The intermolecular interactions between molecules in a compound play a major role in boiling point. Higher boiling temperatures are a result of greater intermolecular interactions, bigger masses, and less branching.

The highest boiling point is for HF. As we go from HF to HI, the van der Waals forces of attraction between all hydrogen halides get stronger.

Boiling point rises as the difference in electronegativity grows. Additionally, the bp grows as the molecule's size does. So the sequence is CO2, CS2, CCl4, and then H2O.

Van der Waals attraction and dipole-dipole attraction draw acetone molecules together.

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Answer:

1) 1.6 moles of HCl

Explanation:

1) 1.6 moles of HCl

2) 7.0 moles of HCl

3) 2.4 moles of hydrogen

4) 0.96 moles of HCl

Explanation:

The balanced chemical equation is:

According to stoichiometry :

1 mole of  require = 2 moles of  

0.8 moles of  will require=  of  

3.5 moles of  will require=  of  

According to stoichiometry :

2 moles of  produce = 1 mole of  

4.8 moles of  will require=  of  

According to stoichiometry :

1 mole of  are produced by = 2 moles of  

0.48 moles of  are produced by =  of

Answer:

because there's a chemical reaction that happens between the anions and cations. The cations are positive ions and anion are negative ions. the reaction occurs as one loses electrons and the other one gaining.

The chemical formula of the isotopes given in this question is as follows:

Isotopes are any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei. Thus, isotopes have the same atomic number but a different mass number.

The chemical formula of an isotopic element is written in the following format: A/Z X

Where;

The atomic number is the number of protons in an atom while the mass number is the sum of the proton number and neutron numbers in the atom.

The chemical formula of the respective isotopes given in this question is outlined in the main answer section.

Note that nucleon number was used for some of the elements. The nucleon number is the mass number of the elements.

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The number of moles of hydrogen is equal to the number of moles of nitrogen.

According to the ideal gas equation

PV = nRT

where

In the problems there are two identical cylinders means, V₁ = V₂

The pressure inside each of two identical cylinders is equal to atmospheric pressure means, P₁ = P₂

Both gases are at the same temperature, means T₁ = T₂

\(\frac{P_1 V_1}{P_2 V_2} \:=\: \frac{n_1 RT_1}{n_2 RT_2}\)

\(\frac{P_1 V_1}{P_2 V_2} \:=\: \frac{n_1 T_1}{n_2 T_2}\)

n₁ = n₂

So the total amount of hydrogen gas is equal to total amount of ideal nitrogen gas.

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Answer:

2117.02 litres

Explanation:

Using the ideal gas equation as follows;

PV = nRT

Where:

P = pressure of the gas (atm)

V = volume of the gas (L)

n = number of moles (mol)

R = gas law constant (Latm/molK)

T = temperature (K)

According to the information given in this question,

P = 0.12 atm

V = ?

n = 9.7moles

T = 46°C = 46 + 273 = 319K

R = 0.0821 Latm/molK

Using PV = nRT

0.12 × V = 9.7 × 0.0821 × 319

0.12V = 254.04

V = 254.04 ÷ 0.12

V = 2117.02 litres

• Molar mass NH3 ,= Molmass of N + ( 3xmol.mass of H ) = ,17 g/mol

• Molar mass of O2, = 2 x Mol.mass of O = 2*16 = ,32 g/mol

• Mass of NH3 = 7.42 g

The balanced equation of the chemical reaction:

According to stoichemistry ,

• 4 moles of NH3 reacts with 5 moles of O2

• 4x17 g of NH3 reacts with 5x32 g of O2

• then , 7.42 g NH3 reacts with x mass of O2

Answer:

We can not swim in 1.00 × 10²⁷ molecules of water

Explanation:

The given number of molecules of water = 1.00 × 10²⁷ molecules

The Avogadro's number, \(N_A\), gives the number of molecules in one mole of a substance

\(N_A\) ≈ 6.0221409 × 10²³ molecules/mol

Therefore

Therefore, we have;

The number of moles of water present in 1.00 × 10²⁷ molecules, n = (The number of molecules of water) ÷ \(N_A\)

∴ n = (1.00 × 10²⁷ molecules)/(6.0221409 × 10²³ molecules/mol) = 1,660.53902857 moles

The mass of one mole of water = The molar mass of water = 18.01528 g/mol

The mass, 'm', of water in 1,660.53902857 moles of water is given as follows;

Mass = (The number of moles of the substance) × (The molar mass of the substance)

∴ The mass of the water in the given quantity of water, m = 1,660.53902857 moles × 18.01528 g/mol ≈ 29.9150756 kg.

The density pf water, ρ = 997 kg/m³

Volume = Mass/Density

∴ The volume of the water present in the given quantity of water, v = 29.9150756 kg/(997 kg/m³) ≈ 30.0050909 liters

The volume of the water present in 1.00 × 10²⁷ molecules of water ≈ 30.0 liters

The average volume of a human body = 62 liters

Therefore, we can not swim in the given quantity of 1.00 × 10²⁷ molecules = 30.0 liters water

Answer:

A. specific impulse

Explanation:

that is the term which describes the amount of thrust created per unit of mass of an ending and fuel.

Answer:

A. Specific Impulse

Explanation:

A P E X

The maximum amount of NaCl possible would be 5.85 grams.

From the balanced equation of the reaction, the mole ratio of sodium that reacts to sodium chloride that is formed is 1:1. Thus, the first thing would be to convert the mass of the sodium given to its mole equivalent.

Mole = mass/molar mass

Mole of 2.3 g sodium = 2.3/23 = 0.1 mol

Since the mole equivalent of the sodium that reacts is 0.1, the mole equivalent of the sodium chloride that is produced will also be 0.1 since the mole ratio is 1:1.

Thus, the mass of 0.1 mol sodium chloride can be deduced as follows:

Mass = mole x molar mass

Molar mass of NaCl = 23 + 35.5 = 58.5 g/mol

Mass of 0.1 mo of NaCl = 0.1 x 58.5

                                       = 5.85 grams.

In other words, the maximum amount of sodium chloride that can be formed from the reaction of 2.3 g of sodium with excess chrlorine will be 5.85 grams.

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The new volume of the nitrogen gas is 88 ml. The correct answer is not listed in the options given, so it is possible that there is a typo in the question or answer choices.

To solve this problem, we can use the ideal gas law equation, PV = nRT. We know the initial pressure (P1 = 2.0 atm), initial temperature (T1 = 45 degrees c = 318 K), and initial volume (V1 = 25 ml) of the nitrogen gas. We can assume the number of moles of nitrogen gas (n) and the gas constant (R) are constant.
First, we need to convert the initial temperature to Kelvin:
T1 = 45 + 273 = 318 K
Next, we can use the ideal gas law to solve for the number of moles of nitrogen gas:
n = (P1V1) / (RT1)
We can then use the same equation to solve for the final volume (V2) at the new conditions:
V2 = (nRT2) / P2
We know the final pressure (P2 = 1.5 atm) and the final temperature (T2 = -10 degrees c = 263 K).
Plugging in the values:
n = (2.0 atm * 25 ml) / (0.0821 L*atm/mol*K * 318 K) = 0.001988 mol
V2 = (0.001988 mol * 0.0821 L*atm/mol*K * 263 K) / 1.5 atm = 0.088 L = 88 ml
Therefore, the new volume of the nitrogen gas is 88 ml. The correct answer is not listed in the options given, so it is possible that there is a typo in the question or answer choices.

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A molecule that is sp³d² hybridized and has a molecular geometry of square pyramidal has 5 bonding groups and 1 lone pair around its central atom.

A molecule that is hybridized and has a molecular geometry of square pyramidal has 6 bonding groups and 0 lone pairs around its central atom. The hybrid orbitals are directed towards the vertices of a square pyramid.

In the sp³d² hybridization, the central atom has a total of 6 electron domains, consisting of 5 bonding groups (each representing a bond with another atom) and 1 lone pair (representing a pair of non-bonding electrons).

The arrangement of these electron domains results in a molecular geometry of square pyramidal, where the bonding groups occupy the corners of a square base and the lone pair is located above the center of the square base, giving it a pyramidal shape.

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2.8 grams of NaCl are in 14.3 L of a 2.38 M solution of NaCl." The molarity is defined as the number of moles of solute present in 1 liter of solution.

The term molarity is defined as the number of moles of solute present in 1 liter of solution.Molarity is also known as the molar concentration of a solution.

Given:

Volume of solution = 14300 mL

Molarity of sodium chloride = 2.38 M

Molar mass of sodium chloride (NaCl) = 59 g/mole

2.38 = mass of NaCl × 1000 / 59g × 14300

mass of NaCl = 2.38 × 59g × 14300 / 1000

= 2.8 grams

Thus, 2.8 grams of NaCl are in 14.3 L of a 2.38 M solution of NaCl.

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The formal name of the resulting molecule is a triacylglycerol, also known as a triglyceride. This molecule is formed when three molecules of fatty acids and one molecule of glycerol join together through a process called esterification.

A triacylglycerol, also known as a triglyceride, is a type of dietary fat molecule composed of three molecules of fatty acid joined to one molecule of glycerol. This molecule is formed through a process called esterification, which involves the reaction of a fatty acid with an alcohol, such as glycerol, to form an ester bond. This bond is what holds the molecules of fatty acid and glycerol together to form the triacylglycerol molecule. Triacylglycerols are an important source of energy for the body, and are a major component of many foods, such as oils, butter, and margarine. In addition, triacylglycerols are used in the body to store energy, and are used as a building block for other types of molecules, such as lipoprotein and cholesterol.

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Answer:

I believe the answer is A

Explanation:

Work and energy are related because when you work, you cause displacement in the object you are exerting upon. While this happens, you transfer energy between the systems. Both work and energy share the same SI unit, called the joule.