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General Chemistry
A 50.00 g sample of a compound was analyzed and found to contain 21.85 g of phosphorus and 28.15 g oxygen. What is the empirical formula for this compound
General Chemistry
What is the molality of a solution containing 75.5 grams sucrose in 400.0 grams water?
General Chemistry
What volume of 0.250 M solution can be prepared from 16.0 g of potassium carbonate?
General Chemistry
how many mol of sucrose in needed to produce 65 mol of glucose
General Chemistry
Pentane is burnt with 96000 cm3 of oxygen gas at room temperature and pressure.
Calculate the mass of zinc needed to react with 50 cm3 of 0.8 M of Hydrochloric acid.
General Chemistry
Two moles of Mg and five moles of O2 are placed in a reaction vessel and then the Mg is ignited according to the reaction
General Chemistry
DALTON'S LAW OF PARTIAL PRESSURE
Solve the problem:
What is the partial pressure of each gas if the following amounts of substances are placed in a 25.0 L container at 25
Solve the problem:
What is the partial pressure of each gas if the following amounts of substances are placed in a 25.0 L container at 25
General Chemistry
What is the volume occupied by 12 moles of nitrogen gas at STP?
General Chemistry
If the actual yield during the experiment is 94 g of P2O5, what is the percent yield of the reaction?
General Chemistry
How much energy (heat) is required to convert 52.0 gram of ice at 10.0C to steam at 100C?
