Problem #1 How many moles are in 44.0 g of Al(OH) 3 ? Problem #2 How many moles are in 6.46 g of He? Problem #3 How many grams are in 0.356...
Problem #1
How many moles are in 44.0 g of Al(OH)3?
Problem #2
How many moles are in 6.46 g of He?
Problem #3
How many grams are in 0.356 moles of Zn?
Problem #4
What is the mass in grams of one C60 molecule?
Problem #5
What is the molar mass of SO2?
Problem #6
How many moles are in 6.07 g of CH4?
Problem #7 Calculate the number of cations and anions in 8.38 g of an aqueous Na2O solution?
Problem #8 What is the % of composition by mass of each element on C2H6O?
Problem #9
A compound is composed of 80.0% of carbon and 20.0% hydrogen by mass.
What is the empirical formula of the compound?
Problem #10 Chalcocite is a common mined copper ore that contains copper (I) sulfide. If a chalcocite ore contains 75.0% copper (I) sulfide by mass, how many kilograms of copper can be extracted from 80.0 Kg of chalcocite?
Problem #11
A mixture is composed of Li2O, LiCN, and LiBr. It was found that the mixture contains 180 g of lithium, 10 g of nitrogen, and 51 g of oxygen by mass. Determine the mass of Li2O in the mixture.
