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18 Nov 2019
m for the fiest par 67) Balance the following equations (l)Cu + HNO3 â Cu(NOP2 + NO + 1110 68) A quantity of 10.00 mL of a potassium hydroxide (KOH) solution is needed to neutralize 04084 g of potassium hydrogen phthalate (CsHsKO4), commonly known as KHP. What is the concentration (in molarity) of the potassium hydroxide (KOH) solution? 69) Calculate the volume in mL of a 1.420 M NaOH solution required to titrate the following solutions (a) 25.00 mL of a 2.430 M HCI solution (b) 25.00 mL of a 4.500 MH2SO4 solution (c) 25.00 mL of a 1.500 M HsPOs solution 70) If 30.0 mL of 0.150 M CaClz is added to 15.0 mL of 0.100 M AgNO, what is the mass in grams of Ag precipitate? 71) A sample of 1.699 g of an unknown compound containing silver ions (Ag) is dissolved in water treated with an excess of sodium chloride (NaCI) in acidic condition. If the mass of the silver chloride precipitate formed is 1.434 g, what is the percent by mass of silver (Ag) in the original unknown com 2) How many grams of the dry-cleaning solvent 1,2 dichloroethane (also called ethylene chloride), an be prepared by reaction of 14.18 g of ethylene (C2H4) with 14.18 g of Cla? Calculate the perce ass of C2HClh actually obtained is 19.00 g
m for the fiest par 67) Balance the following equations (l)Cu + HNO3 â Cu(NOP2 + NO + 1110 68) A quantity of 10.00 mL of a potassium hydroxide (KOH) solution is needed to neutralize 04084 g of potassium hydrogen phthalate (CsHsKO4), commonly known as KHP. What is the concentration (in molarity) of the potassium hydroxide (KOH) solution? 69) Calculate the volume in mL of a 1.420 M NaOH solution required to titrate the following solutions (a) 25.00 mL of a 2.430 M HCI solution (b) 25.00 mL of a 4.500 MH2SO4 solution (c) 25.00 mL of a 1.500 M HsPOs solution 70) If 30.0 mL of 0.150 M CaClz is added to 15.0 mL of 0.100 M AgNO, what is the mass in grams of Ag precipitate? 71) A sample of 1.699 g of an unknown compound containing silver ions (Ag) is dissolved in water treated with an excess of sodium chloride (NaCI) in acidic condition. If the mass of the silver chloride precipitate formed is 1.434 g, what is the percent by mass of silver (Ag) in the original unknown com 2) How many grams of the dry-cleaning solvent 1,2 dichloroethane (also called ethylene chloride), an be prepared by reaction of 14.18 g of ethylene (C2H4) with 14.18 g of Cla? Calculate the perce ass of C2HClh actually obtained is 19.00 g
Beverley SmithLv2
17 Mar 2019