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IB Chemistry HL

To help get ready for the midterm

Balance the Following: FeS + O2 --> Fe2O3 + SO2 4FeS + 7O2(7 dioxide)--> 2Fe2O3+ 4SO2
Convert 8.76 x 10^12 ng to g. 8760 g
Convert 2.56 moles Ge to atoms. 1.54 x 10^24
Convert 8.90 x 10^15 molecules of CO2 to grams. 6.51 x 10^-7 grams
Balance the following: Cu + HNO3 --> Cu(NO3)2 + NO + H2O 3Cu + 8HNO3 --> 3 Cu(NO3)2 + 2NO + 4H20
Find the Empirical Formula. 26.56%K 35.41%Cr 38.03%C KCrC5
4.04%N 11.46%O. Find the Empirical Formula and Molecular Formula if the formula mass is 108.0 amu. Empirical Formula: N2O5 Molecular Formula: N2O5
Limiting Reagent: N2 + 3H2 --> 2NH3 How many grams of NH3 can be produced from the reaction of 28 g of N2 and 25 g of H2? 34g NH3
Limiting Reagent: 3AgNO3 + Na3PO4 -> Ag3PO4 + 3NaNO3 Silver nitrate and sodium phosphate are reacted in equal amounts of 200. g each. How many grams of silver phosphate are produced? 164G Ag3PO4
Percentage Yield: CO + 2H2 -> CH3OH If Co has 75.0 g and CH3OH produces 68.4 g, then find the percentage yield for CH3OH. Percentage Yield = 79.7 %
Find the Empirical Formula: 25.3%Cu 12.9%S 25.7%O 36.1%H2O CuSO4H10 xO5
Created by: BerkeleyHighIB