1. How many grams does 1 L of a 0.3M solution of NaCl contain? 2. How many grams of NaCl are required to make 250 mL of a 0.4 M solution? 3. How many grams of NaCl are required to make 50 mL of a 0.3 M solution? 4. How many grams of HCl are required to make 1,200 mL of 0.03 M solution? 5. What is the molarity of a solution of Na2SO4 in which 284.2 g of this salt are placed in a 1 L volumetric flask and made up to volume with water?

1.How many grams of sodiumchloridearecontainedin300mLofan8%solution? 2. How many milliliters of glacial acetic acid are contained in 150 mL of a 40% solution of acetic acid? 3. Howmanygramsofsaltarepresentin500mLofphysiologicalsaline?

4. How would you make 2,000mL of 40% v/v HCl?

1. Calcium chloride (CaCl2) is available; the procedure calls for an 8% CaCl210 H20 solution. What would be the procedure for making 2,000 mL of the desired concentration? 2. How many grams of CuSO45 H20 are needed to make 1 L of a 1% solution of CuSO4? 3. How many grams of Co(NO3)26 H2O are needed in preparing 400 mL of a 0.02% solution of Co(NO3)2? 4. A 9% CuSO4 (anhydrous) solution is made up by dissolving 9 g of anhydrous CuSO4 in 100 mL of solution. How is a 9% CuSO45 H2O solution made?

Please write the answers step by step on how do you got them. All the answers are below.

answers

1. 17.55 g 2. 5.85 g 3. 0.878 g 4. 1.314 g 5. 2.0 M

answers

1. 24gNaCl 2. 60 mL glacial acetic acid 3. 4.25 g 4. 800 mL HCl, brought to a volume of 2 liters

answers

61.06 g CaCl2 brought to 2 L volume will be the same solution as 2,000 mL of 8% CaCl2H2O

2. 15.64 g CuSO45 H2O brought to 1 L will make a 1% CuSO4 solution 3. 0.127 g Co(NO3)26 H2O brought to 400 mL will make a 0.02% Co(NO3)2 solution 4. 9 g CuSO45 H2O brought up to 100 mL volume