11. A balloon is left inside a car on a hot summer day. At noon, which of the following changes can happento the balloon?I.the pressure increasesII.the volume increases as the balloon expandsIII. the number of moles increasesIV. the density of the balloon decreasesV.the average kinetic energy of the molecules in the balloon increasesa.I and IIb.II and IIIc.II, IV, and Vd.II, III, and Ve.IV and V
12. A student needs to make 100.0 ml of a 2.00M solution of HCl.In the stockroom, she finds a 12.0M HClsolution.What volume of the 12.0M HCl solution should she use?
Get answer to your question and much more
13. A 65 mL volume of solution contains 20.0 g of dissolved KCl. What is the molarity?
Get answer to your question and much more
14. Ammonia is an important source of nitrogen in agriculture and is produced on an industrial scale usingthe following balanced chemical reaction:N2(g) + 3H2(g)→2NH3(g)If 19.2gof ammonia is produced by a reaction mixture that initially contains 0.60 mol of N2,and excessH2, what is the percent yield of the reaction?
Get answer to your question and much more
