What volume of 0.12 M Na2SO4 will be required to react with 10 mL of 0.05 M CrCl6?

al volume of Nach will be needed to 4) If 42.57 mL of 0.10M NaOH is used to back titrate a mixture of an unknown mass of calcium carbonate and 7.67 mL of 3.0M HCl, what was the mass of calcium carbonate in the mixture a. How many milligrams is this?

9. What volume, in mL, of 0.50 M K3PO4 could be prepared using 1.00x10² mL of 0.95 M K3PO4?

if a 1.25g sample of magnesium oxide (98.9%) were titrated with 70ml of 1.04N of sulfuric acid, what volume of 1.15N sodium hydroxide would be required in the back titration?

Calculate the mass of potassium hydrogen phthalate (KHP), KHC8H4O4 needed to react completely with20.00 mL of 0.10 M NaOH solution. The equation is given in the lab manual. (MM of KHP is 204.2 g/mol). (Not in millimoles)

What is the final molarity when 250ml 0.35M KBr is mixed with a)150mL water b)150 mL 0.25 Kbr

A 22.47 mL sample of dilute HBr requires 31.92 mL of 0.117 M KOH for neutralization.  Determine the molar concentration of HBr in the sample

To 0.340 L of 0.150 M NH3 is added 0.150 L of 0.120 M MgCl. Part A How many grams of (NH4)2SO4 should be present to prevent precipitation of Mg(OH)2(8)? Express your answer using two significant figures. ΜΕ ΑΣΦ m = 2.38 Submit Previous Answers Request Answer X Incorrect: Try Again; 3 attempts remaining ? g

how many grams of na2so4 are required to make 0.350l of 0.500m na2so4?

What volume of 1.5M HBr solution is needed for a reaction that requires 2.0g HBr?