6. Chemical Quantities & Aqueous Reactions
Solution Stoichiometry
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- 객관식
How many milliliters of 0.325 M HCl are needed to react with 16.2 g of magnesium metal?
2 HCl (aq) + Mg (s) → MgCl2 + H2 (g)
5248views8rank4comments - 객관식
What is the molar concentration of a hydrobromic acid solution if it takes 34.12 mL of HBr to completely neutralize 82.56 mL of 0.156 M Ca(OH)2?
2 HBr (aq) + Ca(OH)2 (aq) → CaBr2 (aq) + 2 H2O (l)
4391views9rank3comments - 객관식
Consider the following balanced chemical equation:
H2O+ 2 MnO4– + 3 SO32- → 2 MnO2 + 3 SO42-+ 2 OH–
How many grams of MnO2 (MW:86.94 g/mol) will be created when 25.0 mL of 0.120 M MnO4– (MW:118.90 g/mol) reacts with 32.0 mL of 0.140 M SO32- (MW:80.07 g/mol).
3832views8rank - 미해결 질문
Titration of a 20.0-ml sample of acid rain required 1.7 ml of 0.0811 m NaOH to reach the end point. If we assume that the acidity of the rain is due to the presence of sulfuric acid, what was the concentration of sulfuric acid in this sample of rain?"
1013views - 미해결 질문What mass of na2cro4 is required to precipitate942views
- 미해결 질문What mass of barium sulfate can be produced when980views
- 미해결 질문
The mass percent of CaCO3(s) in the eggshell sample is closest to
1205views - 객관식100.0 mL of 0.100 M sodium phosphate is mixed with 100.0 mL of 0.120 M calcium chloride. What mass of calcium phosphate precipitate is formed?534views






