1) a NaOH solution weighs 150 g, the weight of water being 125 grams. what is...
1) a NaOH solution weighs 150 g, the weight of water
being 125 grams. what is the mass/mass % of NaOH?
2) what volume of water needs to be added to 2.5M of 300mL solution
to get a solution concentration of 0.65M?
Homework Answers
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1) a NaOH solution weighs 150 g, the weight of water
being 125 grams. what is...
2. A student prepared a stock solution by dissolving 15.0 g of NaOH in enough water...
2. A student prepared a stock solution by dissolving 15.0 g of NaOH in enough water to make 150 mL of a stock solution. She then took 22.5 mL of the stock solution and diluted it with enough water to make 250. mL of a working solution. (5 pts. each) A. What is the molar concentration of NaOH in the stock solution? # of moles x 1000 Naot mass= 15,09 g molanty volume of source (m) Mol 40 g/mol voline...
Exercises (Mass Percent) 1. 3.0 grams of sugar are dissolved in 150 g of water What...
Exercises (Mass Percent) 1. 3.0 grams of sugar are dissolved in 150 g of water What is the mass percent of sugar in the solution? 2. A 200-gram solution of alcohol contains 180 mL of water. What is the mass percent of alcohol? (Remember water's density.) 3. How many grams of NaBr are needed to make 50 g of a 5.0% solution? 4. How many grams of LiOH are needed to make 25 g of a 4.0% solution? 5. What...
Determine the amount in grams of NaCl that exists in 35.8 g of a solution that...
Determine the amount in grams of NaCl that exists in 35.8 g of a solution that contains 2.05 % NaCl by mass. What is the molarity of a solution prepared by dissolving 22.5 of Ba(NO3)2 into 457 ml of water? Use the volume of water given as the volume of solution. Exactly 17.0 mL of a H2SO4 solution was required to neutralize 45.0 mL of 0.235 M NaOH. What was the concentration of the H2SO4 solution? Given: H2SO4 (aq) +...
1. How many grams of pure, solid NaOH are required to make 400 mL of 0.1M NaOH solution? 2. How many grams of a sol...
1. How many grams of pure, solid NaOH are required to make 400 mL of 0.1M NaOH solution? 2. How many grams of a solution that is 50% by weight NaOH is required to make 400 mL of 0.1M NaOH solution? 3. The density of a 50% solution of NaOH is 1.525 g/mL. What volume of a solution that is 50% by weight NaOH is required to make 300 mL of 0.1M NaOH solution? 4. Why does weighing by difference...
17) How many grams of water are in 250.0 g of a 5% by mass solution?...
17) How many grams of water are in 250.0 g of a 5% by mass solution? How many grams of sugar are in this solution? 18) A solution is prepared with 45.0 g of NaCl in enough water to make a 50mL solution. What is the molarity of the solution? 19) If 345 g of MgCl, solution is evaporated and 32.8 g of magnesium chloride are collected. What is the mass percent of the salt in the solution? How much...
51 g of NaOH are dissolved in water to make 4034 mL of a NaOH solution....
51 g of NaOH are dissolved in water to make 4034 mL of a NaOH solution. Use 40 for the molecular weight of NaOH. What is the concentration of the resulting NaOH solution?
What is the concentration of NaOH solution (M) if you have the mass of NaOH as 0.12 grams and the volume as 250.00 ml ?...
What is the concentration of NaOH solution (M) if you have the mass of NaOH as 0.12 grams and the volume as 250.00 ml ? The PH of the solution is 11.5
35 g of NaOH are dissolved in water to make 3872 mL of a NaOH solution....
35 g of NaOH are dissolved in water to make 3872 mL of a NaOH solution. Use 40 for the molecular weight of NaOH. What is the concentration of the resulting NaOH solution? Submit Answer Tries 0/5
1.What mass of HKC8H4O4 reacts with 25.00 mL of NaOH a solution containing 0.800 g NaOH...
1.What mass of HKC8H4O4 reacts with 25.00 mL of NaOH a solution containing 0.800 g NaOH / L.? 2.A 0.3396 g sample of pure 96.4% Na2SO4 reacts quantitatively with 37.70 mL of a barium chloride solution. The reaction is: Ba + 2 (ac) + SO4-2 (ac) → BaSO4 (s) Calculate the molar concentration of barium ion in the solution. 3. What mass of Ag2CO3 is obtained from the reaction of 125 mL of 0.500 M AgNO3 with about 125 mL...
#16 Find the molarity of 12.5 g of NaOH in 125 ml of water (molar mass...
#16 Find the molarity of 12.5 g of NaOH in 125 ml of water
(molar mass of NaOH= 40.00 g/mol)
#17 A solution is prepared by dissolving 15.0g of NaCl in 85.0
g of H2O. Find mass % (m/m)
16. Find the molarity of 12.5 g of NaOH in 125 ml of water (molar mass of NaOH = 40.00 g/mol: Show your work below in order to receive credit) 17. A solution is prepared by dissolving 15.0 g of NaCl...
2. A student prepared a stock solution by dissolving 15.0 g of NaOH in enough water to make 150 mL of a stock solution. She then took 22.5 mL of the stock solution and diluted it with enough water to make 250. mL of a working solution. (5 pts. each) A. What is the molar concentration of NaOH in the stock solution? # of moles x 1000 Naot mass= 15,09 g molanty volume of source (m) Mol 40 g/mol voline...
Exercises (Mass Percent) 1. 3.0 grams of sugar are dissolved in 150 g of water What is the mass percent of sugar in the solution? 2. A 200-gram solution of alcohol contains 180 mL of water. What is the mass percent of alcohol? (Remember water's density.) 3. How many grams of NaBr are needed to make 50 g of a 5.0% solution? 4. How many grams of LiOH are needed to make 25 g of a 4.0% solution? 5. What...
Determine the amount in grams of NaCl that exists in 35.8 g of a solution that contains 2.05 % NaCl by mass. What is the molarity of a solution prepared by dissolving 22.5 of Ba(NO3)2 into 457 ml of water? Use the volume of water given as the volume of solution. Exactly 17.0 mL of a H2SO4 solution was required to neutralize 45.0 mL of 0.235 M NaOH. What was the concentration of the H2SO4 solution? Given: H2SO4 (aq) +...
1. How many grams of pure, solid NaOH are required to make 400 mL of 0.1M NaOH solution? 2. How many grams of a solution that is 50% by weight NaOH is required to make 400 mL of 0.1M NaOH solution? 3. The density of a 50% solution of NaOH is 1.525 g/mL. What volume of a solution that is 50% by weight NaOH is required to make 300 mL of 0.1M NaOH solution? 4. Why does weighing by difference...
17) How many grams of water are in 250.0 g of a 5% by mass solution? How many grams of sugar are in this solution? 18) A solution is prepared with 45.0 g of NaCl in enough water to make a 50mL solution. What is the molarity of the solution? 19) If 345 g of MgCl, solution is evaporated and 32.8 g of magnesium chloride are collected. What is the mass percent of the salt in the solution? How much...
35 g of NaOH are dissolved in water to make 3872 mL of a NaOH solution. Use 40 for the molecular weight of NaOH. What is the concentration of the resulting NaOH solution? Submit Answer Tries 0/5
#16 Find the molarity of 12.5 g of NaOH in 125 ml of water
(molar mass of NaOH= 40.00 g/mol)
#17 A solution is prepared by dissolving 15.0g of NaCl in 85.0
g of H2O. Find mass % (m/m)
16. Find the molarity of 12.5 g of NaOH in 125 ml of water (molar mass of NaOH = 40.00 g/mol: Show your work below in order to receive credit) 17. A solution is prepared by dissolving 15.0 g of NaCl...
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