Chem Quiz: Moles to pH

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Chemistry concepts quiz

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Livia Rapaport

United States

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Froggy Jumps Chem Quiz: Moles to pHOnline version Chemistry concepts quiz by Livia Rapaport 1 What is the molar mass of H2O (approximate to 2 d.p.)? a 24.46 g/mol b 16.00 g/mol c 18.02 g/mol 2 How many moles are in 58.5 g of NaCl? (NaCl molar mass ~58.5 g/mol) a 0.585 mol b 1.00 mol c 2.00 mol 3 If 0.500 M HCl is titrated to 25.0 mL, what is moles of HCl added? a 0.250 mol b 0.0050 mol c 0.0125 mol 4 In a 0.100 M solution, what is the number of moles in 250 mL? a 0.250 mol b 0.00250 mol c 0.0250 mol 5 Which pH range indicates a strong acid? a pH 4-6 b pH < 2 c pH 7-8 6 Le Chatelier: increasing pressure favors the side with fewer moles of gas for a gas reaction. True or False? a Only at high temperatures b False c True 7 What does Ka measure in acid-base chemistry? a Acid strength (dissociation constant) b Base strength c Reaction rate constant 8 If you add base to an acid solution, the pH usually: a Remains the same b Decreases c Increases 9 ppm stands for parts per million. In water, 1 mg/L is equivalent to how many ppm? a 0.001 ppm b 1 ppm c 1000 ppm 10 Which statement about equilibrium is true? a There is no net change in the system at equilibrium b Only products are present at equilibrium c Reactants completely convert to products

Froggy Jumps

Chem Quiz: Moles to pHOnline version

Chemistry concepts quiz

by Livia Rapaport

What is the molar mass of H2O (approximate to 2 d.p.)?

24.46 g/mol

16.00 g/mol

18.02 g/mol

How many moles are in 58.5 g of NaCl? (NaCl molar mass ~58.5 g/mol)

0.585 mol

1.00 mol

2.00 mol

If 0.500 M HCl is titrated to 25.0 mL, what is moles of HCl added?

0.250 mol

0.0050 mol

0.0125 mol

In a 0.100 M solution, what is the number of moles in 250 mL?

0.250 mol

0.00250 mol

0.0250 mol

Which pH range indicates a strong acid?

pH 4-6

pH < 2

pH 7-8

Le Chatelier: increasing pressure favors the side with fewer moles of gas for a gas reaction. True or False?

Only at high temperatures

False

True

What does Ka measure in acid-base chemistry?

Acid strength (dissociation constant)

Base strength

Reaction rate constant

If you add base to an acid solution, the pH usually:

Remains the same

Decreases

Increases

ppm stands for parts per million. In water, 1 mg/L is equivalent to how many ppm?

0.001 ppm

1 ppm

1000 ppm

Which statement about equilibrium is true?

There is no net change in the system at equilibrium

Only products are present at equilibrium

Reactants completely convert to products

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Chem Quiz: Moles to pH

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Chem Quiz: Moles to pHOnline version

by Livia Rapaport

What is the molar mass of H2O (approximate to 2 d.p.)?

How many moles are in 58.5 g of NaCl? (NaCl molar mass ~58.5 g/mol)

If 0.500 M HCl is titrated to 25.0 mL, what is moles of HCl added?

In a 0.100 M solution, what is the number of moles in 250 mL?

Which pH range indicates a strong acid?

Le Chatelier: increasing pressure favors the side with fewer moles of gas for a gas reaction. True or False?

What does Ka measure in acid-base chemistry?

If you add base to an acid solution, the pH usually:

ppm stands for parts per million. In water, 1 mg/L is equivalent to how many ppm?

Which statement about equilibrium is true?

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