
Investigation 6 Exam
Flashcard
•
Science
•
10th Grade
•
Practice Problem
•
Hard
Wayground Content
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16 questions
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1.
FLASHCARD QUESTION
Front
What is the molar mass of AuCl3?
Back
303.3 g
2.
FLASHCARD QUESTION
Front
A compound consists of 72.2% magnesium and 27.8% nitrogen by mass. What is the empirical formula?
Back
Mg3N2
3.
FLASHCARD QUESTION
Front
What is the molecular formula if the empirical formula is C2H5 and the molecular molar mass is 58.14 g/mol?
Back
C4H10
4.
FLASHCARD QUESTION
Front
What is the mass % of H in methane (CH4)?
Back
25%
5.
FLASHCARD QUESTION
Front
What is the molecular formula for a compound with the empirical formula: K2SO4 and a molecular mass of 696g?
Back
K8S4O16
6.
FLASHCARD QUESTION
Front
Define molar mass.
Back
The mass of one mole of a substance, typically expressed in grams per mole (g/mol).
7.
FLASHCARD QUESTION
Front
What is an empirical formula?
Back
The simplest whole-number ratio of atoms of each element in a compound.
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