Answer to Question #147935 in Chemistry for shen

Question

1. How many moles of Na2SO4 are produced by reaction of 124 g of NaOH with sufficient H2SO4?
2. How many moles of PbI2 can be prepared by the reaction of 0.128 mol of Pb(NO3)2 and 0.206 mol NaI?
3. A sample of a hydrocarbon (a compound of carbon and hydrogen only) is burned, and 1.10 g CO2 and 0.450 g H2O are produced. What is the empirical formula of the hydrocarbon?
4. What is the molarity of a solution prepared by dissolving 63.0 g NaF in enough water to make 250.0 mL of solution?
5. Calculate the number of milliliters of 1.25 M solution required to contain 0.622 mol of solute.
6. What is the concentration of a solution containing 1.23 mmol in 1.00 mL?
7. What is the final concentration of 2.00 L of 3.00 M solution if enough water is added to dilute the solution to 10.0 L?
8. What is the concentration of a solution prepared by diluting 25.0 mL of 3.00 M solution to 60.0 mL?
9. Calculate the number of moles of AgCl that can be prepared by mixing 0.740 L of 1.25 M AgNO3 with excess NaCl.

Answer 1

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