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Day 53 Formula Mass Exit Questions

Day 53 Formula Mass Exit Questions

Assessment

Flashcard

English

10th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the formula mass of NH₃?

Back

17.0 g/mol.

2.

FLASHCARD QUESTION

Front

What is the percent by mass of hydrogen in NH₃?

Back

5.9%.

3.

FLASHCARD QUESTION

Front

What is the formula for calculating percent by mass?

Back

(mass of element in 1 mole of compound / molar mass of compound) x 100.

4.

FLASHCARD QUESTION

Front

What is the gram formula mass of (NH₄)₂SO₄?

Back

94.0 g.

5.

FLASHCARD QUESTION

Front

How do you calculate the gram formula mass of a compound?

Back

Add the atomic masses of all atoms in the formula.

6.

FLASHCARD QUESTION

Front

What is the atomic mass of nitrogen (N)?

Back

14.0 g/mol.

7.

FLASHCARD QUESTION

Front

What is the atomic mass of hydrogen (H)?

Back

1.0 g/mol.

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