Empirical & Molecular Formulas Quiz
Authored by BEN BAUER
Chemistry, Science
9th - 12th Grade
NGSS covered
Used 75+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which pair has the same empirical formula?
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A compound consists of 72.2% magnesium(Mg) and 27.8% nitrogen(N) by mass. What is the empirical formula?
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A formula with the lowest whole # ratio of elements in a compound is called
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the molecular formula if the empirical formula is CH2O and the molecular molar mass is 180.18?
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Given the following: 42.07% Na, 18.89% P, and 39.04% O, determine the empirical formula.
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the molecular formula for a compound with the empirical formula: K2SO4 and a molecular mass of 696g.
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