What mass of KCl (MW 74.5513) in grams is needed to prepare 100 mL of a 1.3 M solution of KCl?
What mass of KCl (MW 74.5513) in grams is needed to prepare 100 mL of a 1.3 M solution of KCl?
How many grams of KCl are needed to prepare 368 ml of a 2.00 M KCl solution?
What is the mass of CaCl2•2H2O (MW 147.02) in grams needed to prepare 1.0E+02 mL of a 0.4300 M solution of Ca2+ (MW 40.078)?
How many grams of solid KCl are needed to prepare 250.0 mL of 0.235 M solution?
10. What is the mass of CaCl2•2H20 (MW 147.02) in grams needed to prepare 2.0E+02 ml. of a 0.4000 M solution of Ca2+ (MW 40.078)? O 0.312 11.8 O 0.3119 O 0.0850 • 11.76 O 0.04990 Submit Answer Incorrect. Tries 1/2 Previous Tries This discussion is closed.
4. How many grams of KCl are needed to prepare 20 mL of a 0.5% (m/v) solution?
Please calculate these two problems. 11. What mass of KCI (MW 74.5513) in grams is needed to prepare 100 mL of a 1.6 M solution of KCI? O 11.9 O 0.084 O 6.41 6.412 O 12 0.1559 Submit Answer Incorrect. Tries 1/2 Previous Tries This discussion is closed. wwww.du 10. What is the mass of CaCl2 2H20 (MW 147.02) in grams needed to prepare 2.0E+02 mL of a 0.4000 M solution of Ca2 (MW 40.078)? O 0.312 O 11.8 O...
Calculate the mass of EDTA (C10H12CaNNa2Os: MW=374.20 g/mole) needed to prepare a 100- mL of 0.0100M EDTA solution. (Show your work)
To prepare 100 ml of a 50.0 mM solution of KCl from a stock solution that is 1.00 M, use: ___________ ml of 1.00 M KCl and _____________ ml of distilled water The answer: (5.00 ml of 1.00 M KCl and 95.0 ml of water.) But how did they get this answer?
1. A 19.6 gram sample of KCl is used to make a 275. mL KCl solution. What is the molarity of the KCl solution? 2. A chemist has a bottle containing 0.25 M CuCl2. How many milliliters of this solution should the chemist use to add 12.0 grams of CuCl2 to her reaction? 3. In a saturated solution of the ionic compound sodium sulfate, Na3PO4 all of the water molecules are involved in the hydration process. some solid Na3PO4 is...
what volume of a 2.00 M KCl solution is required to prepare 500. mL of a 0.100 M KCl solution