Mole Practice A
star
star
star
star
star
Last updated about 2 years ago
5 questions
Solve all problems and report the numeric portion of the answer (no units when you type your response). Show all steps and express your answer to the appropriate significant figures. You MUST show work for credit!
Required
1
What is the molar mass of sodium phosphate (in grams/mole)? Express your answer to 2 decimal places.
What is the molar mass of sodium phosphate (in grams/mole)? Express your answer to 2 decimal places.
Required
1
How many atoms are contained in 6.71 grams of sulfur?
How many atoms are contained in 6.71 grams of sulfur?
Required
1
How many moles are found in 89.3 grams of phosphorus?
How many moles are found in 89.3 grams of phosphorus?
Required
1
How many grams are found in 2.34 x 1024 atoms of fluorine?
How many grams are found in 2.34 x 1024 atoms of fluorine?
Required
1
How many atoms are contained in 75 grams of boron?
How many atoms are contained in 75 grams of boron?