1) Calculate how many moles of NH3 form when each quantity ofreactant completely reacts according to the equation: 3N2H4(l)→4NH3(g)+N2(g)
A) 35.3 g N2H4 -Express your answer using threesignificant figures.
B) 14.9 kg N2H4 - Express your answer using three significantfigures.
2) For each reaction,calculate the mass of the product that forms when 12.5 g of thereactant in red completely reacts. Assume that there is more thanenough of the other reactant.
a) 2K(s)+Cl2(g)→2KCl(s) b)2K(s)+Br2(l)→2KBr(s) c) 4Cr(s)+3O2(g)→2Cr2O3(s) d)2Sr(s)+O2(g)→2SrO(s)
3) Nitrogen dioxide reacts with water to form nitric acid andnitrogen monoxide according to the equation:3NO2(g)+H2O(l)→2HNO3(l)+NO(g)
Suppose that 3.7 mol NO2 and 1.2 mol H2O combine and reactcompletely. Which reactant is in excess? Express your answer as a chemicalformula.
4) Calculate the molarityof each of the following solutions:
A) 0.19 mol of LiNO3 in 5.48 L ofsolution - Express your answer using two significant figures.B) 62.1 g C2H6O in 2.18 L ofsolution - Express youranswer using three significant figures.
C) 16.14 mg KI in 106 mL of solution -Express your answer using threesignificant figures.
Thank you so much in advance!
