Stoichiometry Regents Chemistry

Stoichiometry Regents Chemistry

10th - 11th Grade

18 Qs

quiz-placeholder

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Stoichiometry Regents Chemistry

Stoichiometry Regents Chemistry

Assessment

Quiz

Chemistry

10th - 11th Grade

Hard

NGSS
HS-PS1-7

Standards-aligned

Created by

Charles Martinez

FREE Resource

18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The gram molecular mass of Ca3(PO4)2 is
246 g
279 g
310 g
342g

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What is the mass in grams of 5.90 mol C8H18?
.0512 g
19.4 g
673 g
389 g

Tags

NGSS.HS-PS1-7

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

36.0 g of Be contains how many moles?
0.25 mol
4.0 mol
45 mol
320 mol

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the percent composition by mass of magnesium in the compound MgSO4 (gram formula mass = 120 g/mol)?

20%

27%

46%

53%

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The students measured length during a science experiement, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error?
15.79%
18.75%
2.25%
18%

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How many moles are in 3.01 x 1022 atoms of magnesium?
0.05 moles
1.81 x 1046 moles
5.00 x 1021 moles
5 moles

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the empirical formula of the following molecular formula:  C3H6
C3H6
CH2
C2H4
CH3

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