100 gm solution containing 24% of KI contain 24 gm of KI by weight
Then 250 gm solution will contain = (250*24)/100 = 60 gm of KI will be needed with 190 gm of water in it
To prepare 1000 litre solution of 40% by weight of KI
40 gm of KI is required to prepare 0.1 litre 40% solution
Then amount of KI required to prepare 1000 litre of water = (40*1000)/0.1 = 400000 gm = 400 kg of KI is needed to 1 litre of water
2) To prepare 250 grams of an aqueous KI solution that 24.0% by weight of this...
To prepare an aqueous solution that is 40.0 % by weight of KI, how many kilograms of KI must be added to 1,000 Liters of water? (7 points) e)
12) You are preparing 960.0 grams of an aqueous solution that contains that contains 32.00% by weight of Na2CO3. What mass of solute would you use and what mass of solvent would you use? [4 points) ider 13) What is the weight percent of a calcium chloride (CaCl2] solution that is made by dissolving 151.6 grams of CaCl in 648.4 grams of water? [4 points) 14) Calculate the new molarity of a 20.0-ml sample of 4.50 M MgCl2 solution that...
How many grams of water are needed to prepare 250. g of a solution that is 5.00% by mass NaCl?
How many grams of NaOH is needed to prepare 2 liters of 0.50 molar NaOH solution? a. 20.0 g c. 80.0 g b. 40.0 g d. 120.0 g
A. How many grams of Ba(CH3COO)2 are there in 220 grams of an aqueous solution that is 19.6 % by weight Ba(CH3COO)2 B. If 27.4 grams of an aqueous solution of chromium(III) sulfate, Cr2(SO4)3, contains 9.77 grams of chromium(III) sulfate, what is the percentage by mass of chromium(III) sulfate in the solution?
how many grams of KOH are there in 250 milliliters of 0.05m aqueous solution of this substance
7. You need to prepare 250 mL of a 0.300 M aqueous solution of sucrose, C H20 (aq), which is used frequently in biological experiments. (pts each) A. Which type of glassware should you use to make this solution (assuming that the accuracy of the concentration is important)? 250ml B. What mass of sucrose would you use? Show work C. How should the solute and solvent be mixed in the container? a. Add solute and fill solvent to 250 mark?...
Quiz 8 X What is the molarity of 0.945 L of a solution that contains 0.227 moles of Fe(NO3)3? M 0.227 nol O.945L 응급주 240 M O.227 0.445 24.02M 240 What is the molarity of a solution that contains 50.0 grams of sodium hydroxide, NaOH, in 855 mL of solution? The molar mass of NaOH is 40.0 grams. imoi 1,25 moi No DH 509 409 S0 1585 M M: .SSL n 1,25 T55 mL L 3 What mass of zinc...
16 A) If 19.2 grams of an aqueous solution of sodium bromide, NaBr , contains 1.41 grams of sodium bromide, what is the weight/weight percent of sodium bromide in the solution? Weight/weight percent = ________%NaBr B) An aqueous solution of aluminum iodide, AlI3, contains 10.4 grams of aluminum iodide and 17.6 grams of water. What is the weight/weight percent of aluminum iodide in the solution? Weight/weight percent =_____ % C) How many mL of methyl alcohol are required to make...
PART A: I) How many grams of CoI2 are there in 225 grams of an aqueous solution that is 21.0 % by weight CoI2. II) An aqueous solution of iron(III) sulfate, Fe2(SO4)3, contains 9.24 grams of iron(III) sulfate and 17.6 grams of water. The percentage by mass of iron(III) sulfate in the solution is %. Part B: I) A solution was made by dissolving 2.39 g sodium chloride () in 27.9 g water (h20). What is the mole fraction of...