Please speak up if you believe your answer is more correct than answers listed below! 26 a (NH4)2Cr2O7 = Cr2O3 + N2 + 4 H2O b 3NO2 + H2O = 2HNO3 + NO c 2H2S + SO2 = 3S + 2H2O d SO2Cl2 + 8HI = H2S + 2H2O + 2HCl + 4I2 34 135 kg HNO3 38 1.22 g H2 50 We calculate 2.3 M ethanol which is greater than 1.71 M given in ex. 4-8. 54 Add 88.2 mL 0.496M KCl to 250 mL volumetric flask, add distilled water to the mark. (stop several times to mix) 64 [HCl]= 0.1215 M CaCO3 consumes 1.998 mmole HCl Ba(OH)2 consumers 1.039 mmol HCl 68 zinc sulfate is the limiting reagent so 0.0866 moles of each product are synthesized. 28.7 g of mixture results. 74 5.0x102 g C2H2Cl2 86. Seawater is 0.49 M NaCl 9.1x105 L need to be evaporated. 90. This is hard. There are two separate reactions where Mg and Al each produce hydrogen. The alloy is 24% Mg by mass.
If you are stumped, you may be able to work backwards from the answer.