![]() The molar mass of sodium chloride, NaCl, is 58.44 g/mol, and the molar mass of chlorine gas, Cl2, is 70.90 g/mol.Ģ Na(s)+Cl2(g)→2 NaCl(s) 322.1 g What is the concentration in ppb of a 496 g of solution that contains 8.1×10−6 g of solute? 16 ppb Consider the balanced chemical equation below. mL? 0.15 M Using the balanced chemical equation below, how many grams of manganese(IV) oxide, MnO2, will be produced by the reaction of 48.32 g of potassium permanganate, KMnO4, and 60.00 g of hydrogen peroxide, H2O2? The molar mass of KMnO4 is 158.03 g/mol, the molar mass H2O2 is 34.01 g/mol, and the molar mass of MnO2 is 86.94 g/mol.Ģ KMnO4+3 H2O2→2 KOH+2 MnO2+2 H2O+3 O2 26.58 g What is the concentration in ppm of 10.5 kg of solution that contains 5.0×10−5 kg of solute? 4.8 ppm Using the balanced chemical equation below, calculate the mass of sodium chloride, NaCl, produced by the complete reaction of 195.4 g of chlorine gas, Cl2. ![]() 74.3 g What is the molarity of a saline solution which contains 0.077 mol of sodium chloride and has a volume of 500. The molar mass of KI is 165.998 g/mol, the molar mass of Pb(NO3)2 is 331.21 g/mol, and the molar mass of PbI2 is 461 g/mol. 9.040×10−5 Gs If 1.39 L of solution contains 0.25 L of solute, what is the volume percent? 18 vol% Using the balanced chemical equation below, calculate the mass of lead(II) iodide, PbI2 produced by the reaction of 67.0 g of lead(II) nitrate, Pb(NO3)2, and 53.5 g of potassium iodide, KI. If the reaction is started with 155.3 g CrI3, 174.2 g H2O2, and 115.8 g OH−, which reagent, if any, is the limiting reagent? The molar mass of CrI3 is 432.7 g/mol, the molar mass of H2O2 is 34.01 g/mol, and the molar mass of OH− is 17.007 g/mol. 2.2×102 J What is the molality of a solution that contains 0.768 mol solute in 0.500 kg solvent? 1.54 m Consider the balanced chemical equation below.Ģ CrI3+27 H2O2+10 OH−→2 CrO2−4+6 IO−4+32 H2O The molar mass of potassium iodide, KI, is 166 g/mol, and the molar mass of lead(II) iodide, PbI2, is 461 g/mol.Ģ KI(aq)+Pb(NO3)2(aq)→PbI2(s)+2 KN O3(aq) 216 g Convert 53 cal to joules. What is the weight percent of a solution made by dissolving 0.575 kg of solute in 2.30 kg of solvent? 20 wt% Using the balanced chemical equation below, calculate the mass of lead(II) iodide, PbI2, produced by the complete reaction of 155.5 g potassium iodide, KI.
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