what is the molarity of solution prepared by disolving 23.54 g of iorn (III) sulfate to a total volume of 125.0mL? At wts:Fe-55.85 g/mol ;s-32.06 g/mol ; O- 16.00 g/mol

Describe the preparation of 1.67 L of 5.00% (w/v) K2Cr2O7 from the solid salt. B) what is the ppm K2Cr2O7 in the above solution?

Calculate the percent by mass of potassium nitrate in a solution made from 45.0 g KNO3 and 295 mL of water at 25ºC. At this temperature, the density of water is 0.997 g/mL.     a)  7.57 %   b)  86.7 %   c)  13.3 %   d)  15.2 %   e)  1.51 %

How many grams of NaCl (MW 58.5) are needed to make 100 mL of 0.45 M (molar) solution?

2. Using the data given below, calculate the percentage of KHP in the impure sample. The molar mass of KHP is 204.219 g/mol. Molarity of NaOH Solution: Mass of Unknown: Volume of Water Used to Dissolve Unknown: Volume of NaOH Used to Reach Equivalence Point: Percent of KHP: 0.1955 M 1.1801 g 30.00 mL 17.01 mL % Stolal Vol)

9.)What is the molar concentration of potassium chloride (Formula Weight: 74.55g/mole) in a 5% (w/v) solution?

A

What volume in mL of 0.251 M sodium hydroxide solution would be required to neutralize 120 mL of 0.0211 M H2SO4 solution?   The balanced chemical reaction is shown below: 2NaOH  +  H2SO4 -->  Na2SO4  +  H2O

What is the hydration state of CuSO4. x -H2O? Mass of sample: 1.000 (g)  Mass of water lost: 0.361 (g)

50.00 ml of 0.120 mol/L MgSO4 solution is made to be using MgSO4. 7H2O, which has a molar mass of 246.47 g/mol.  a. How many moles of solid MgSO4. 7H2O are required?