Stoichiometry--Mixed Problems
Flashcard
•
Chemistry
•
9th - 12th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
Student preview
15 questions
Show all answers
1.
FLASHCARD QUESTION
Front
What is stoichiometry?
Back
Stoichiometry is the branch of chemistry that deals with the calculation of reactants and products in chemical reactions based on the conservation of mass.
2.
FLASHCARD QUESTION
Front
Define mole ratio.
Back
A mole ratio is a ratio that relates the amounts in moles of any two compounds involved in a chemical reaction.
3.
FLASHCARD QUESTION
Front
True or False: A mole ratio is always written with the larger number in the denominator.
Back
False
4.
FLASHCARD QUESTION
Front
What is the balanced equation for the formation of phosphorus trifluoride?
Back
P4 (s) + 6 F2 (g) → 4 PF3 (g)
5.
FLASHCARD QUESTION
Front
How do you calculate the mass of a reactant needed in a reaction?
Back
Use the mole ratio from the balanced equation and the molar mass of the reactants.
6.
FLASHCARD QUESTION
Front
If 6.20 g of phosphorus reacts, how many grams of fluorine are needed?
Back
11.4 g F2 are needed.
7.
FLASHCARD QUESTION
Front
What is the molar mass of C5H8?
Back
The molar mass of C5H8 is approximately 68.1 g/mol.
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Microsoft
or continue with
%20(1).png)
Apple
Others
Already have an account?
