What is the empirical formula?
Chemical Quantities - Flashcard

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Chemistry
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A formula that shows the lowest whole number ratio of elements in a compound.
2.
FLASHCARD QUESTION
Front
How many moles of potassium (K) are in 25 g of K?
Back
0.64 mol
3.
FLASHCARD QUESTION
Front
What is the molar mass of C7H5N3O6?
Back
227.1 g/mol
4.
FLASHCARD QUESTION
Front
How many atoms of potassium (K) are in 0.5 moles of K2CrO4?
Back
6.022×10^23 atoms
5.
FLASHCARD QUESTION
Front
What is the mass of 1.55 moles of NCl3?
Back
187 g
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 the relationship between moles and mass?
Back
Mass (g) = Moles × Molar Mass (g/mol).
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