Percent by Mass Quiz

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Mass percent basics

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Froggy Jumps Percent by Mass QuizVersión en línea Mass percent basics por Aileen Comedia 1 What is the mass percent of a component in a mixture? a (m_total / m_i) × 100 b w_i = (m_i / m_total) × 100 c m_i / m_total 2 Which formula correctly defines mass percent of A in a mixture? a w_A = m_total / m_A b w_A = (m_A / m_total) × 100 c m_A = m_total × 100 3 If 5 g of solute are in 95 g of solution, what is the mass percent? a 50% b 5% c 95% 4 A 250 g sample contains 60 g solute. What is the mass percent of solute? a 14% b 34% c 24% 5 If 40 g solute in 160 g solution, mass percent is how much? a 60% b 20% c 40% 6 Which statement about mass percent is true? a It uses volume b It is independent of temperature c It is a molarity measure 7 How do you find the mass of solute from a given mass percent and total mass? a m_A = m_total × 100 b m_A = m_total / mass_percent c m_A = (mass_percent/100) × m_total 8 Convert 25% by mass to a decimal fraction. a 0.0025 b 2.5 c 0.25 9 Why is mass percent not affected by temperature changes? a Moles change with temperature b Mass does not change with temperature c Volume changes with temperature 10 Mass percent vs molarity: which is incorrect? a Mass percent uses mass b Molarity uses volume of solution c Mass percent equals molarity

Froggy Jumps

Percent by Mass QuizVersión en línea

Mass percent basics

por Aileen Comedia

What is the mass percent of a component in a mixture?

(m_total / m_i) × 100

w_i = (m_i / m_total) × 100

m_i / m_total

Which formula correctly defines mass percent of A in a mixture?

w_A = m_total / m_A

w_A = (m_A / m_total) × 100

m_A = m_total × 100

If 5 g of solute are in 95 g of solution, what is the mass percent?

50%

95%

A 250 g sample contains 60 g solute. What is the mass percent of solute?

14%

34%

24%

If 40 g solute in 160 g solution, mass percent is how much?

60%

20%

40%

Which statement about mass percent is true?

It uses volume

It is independent of temperature

It is a molarity measure

How do you find the mass of solute from a given mass percent and total mass?

m_A = m_total × 100

m_A = m_total / mass_percent

m_A = (mass_percent/100) × m_total

Convert 25% by mass to a decimal fraction.

0.0025

2.5

0.25

Why is mass percent not affected by temperature changes?

Moles change with temperature

Mass does not change with temperature

Volume changes with temperature

Mass percent vs molarity: which is incorrect?

Mass percent uses mass

Molarity uses volume of solution

Mass percent equals molarity

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Percent by Mass Quiz

Froggy Jumps

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Creada por

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Froggy Jumps

Percent by Mass QuizVersión en línea

por Aileen Comedia

What is the mass percent of a component in a mixture?

Which formula correctly defines mass percent of A in a mixture?

If 5 g of solute are in 95 g of solution, what is the mass percent?

A 250 g sample contains 60 g solute. What is the mass percent of solute?

If 40 g solute in 160 g solution, mass percent is how much?

Which statement about mass percent is true?

How do you find the mass of solute from a given mass percent and total mass?

Convert 25% by mass to a decimal fraction.

Why is mass percent not affected by temperature changes?

Mass percent vs molarity: which is incorrect?

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