REVIEW: Moles<-->Mass

REVIEW: Moles<-->Mass

9th - 12th Grade

10 Qs

quiz-placeholder

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REVIEW: Moles<-->Mass

REVIEW: Moles<-->Mass

Assessment

Quiz

Chemistry

9th - 12th Grade

Medium

TEKS, TEKS 8 (A) (B) 2021, 8

+3

Standards-aligned

Created by

Jacqueline Pelcman

Used 3+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

The molar mass of an element is equal to its...

Atomic mass (from the periodic table)

Atomic number (from the periodic table)

Oxidation number

Valence electrons

2.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

A chemist needs to prepare a solution and requires the exact molar mass of Ba(OH)2 for the calculation. What is the molar mass of Ba(OH)2?

153.49 g/mol

171.35 g/mol

56.24 g/mol

Tags

TEKS 8 (A) (B) 2021

3.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

A chef is preparing a special sauce and realizes they have exactly 50.0 grams of water (H2O) left. How many moles of H2O does this amount to?

2.77 moles

18.02 moles

901 moles

Tags

TEKS

8

(A)

(B)

2021

4.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

A chemist needs to prepare a solution and requires exactly 0.750 moles of calcium chlorate, Ca(ClO3)2. How much mass of calcium chlorate should the chemist weigh out?

155.24 grams

206.98 grams

128.65 grams

5.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

A chemist adds 2.50 moles of sodium sulfate, Na2SO4, to a solution for an experiment. What mass of the substance was added?

297.65 grams

142.05 grams

355.13 grams

Tags

TEKS

8

(A)

(B)

2021

6.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

A chemist is working on a project that involves the use of aluminum carbonate, Al2(CO3)3. What is the molar mass of aluminum carbonate used in the project?

54.99 g/mol

233.99 g/mol

185.99 g/mol

7.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

If a chemist has 3.0 moles of sodium hydroxide, NaOH, in their laboratory, what is the mass of this compound?

about 40 grams

about 23 grams

about 120 grams

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