Calculate the amount of oxalic acid required to prepare 250 ml of 0.5 N solution?
What mass of oxalic acid, H2C2O4, is required to prepare 250 mL of a solution that has a concentration of (4.53x10^-1) M H2C2O4?
Prepare 250 mL of a 0.5 M aqueous sucrose solution. Calculate the mass of sucrose required for the 250 mL solution. The molecular weight of sucrose is 342.3g/mol
Calculate the mass of maleic acid required to prepare 250 mL of a 0.05M solution. (I got 1.45 grams). This is the part I'm confused on: How many millimoles of the acid are contained in a 25 mL aliquot?
Calculate the mass of oxalic acid needed to make a 250.0 mL standard solution that is 0.0500 mol L-1 . You will use oxalic acid dihydrate, (COOH)2.2H2O. M((COOH)2.2H2O) = 126.07 g mol-1 )
4. Calculate the mass of Oxalic acid (H2C2O4*2H2O) required to neutralize 20.0 ml of 0.10 M NaOH solution using the balanced chemical equation for this reaction. 5. A 0.120 g sample of pure oxalic acid (H2C2O2*2H2O) was dissolved in water and neutralized with 21.0 ml of NaOH. Calculate the molarity of NaOH. Do not use scientific notation, but do use the proper number of significant digits and units.
12. Describe how to prepare a 250mL 0.350M of oxalic acid solution using oxalic acid dihydrate solids (H2C204.2H20, molar mass = 126.06g/mol) You need to describe appropriate glassware in your preparation. 13. Describe how you would prepare 500. mL of 0.10M of HCl solution from 3.0M of HCI stock solution. You need to describe appropriate glassware in your preparation.
You titrated a 22.00 mL solution of 0.0300 M oxalic acid with
freshly prepared solution of KMnO4. If it took 48.99 mL of this
solution, what is the molarity of the KMnO4?
0.022 L of 0.300 M oxalic acid
(0.022)(0.03) = 0.00066 mol oxalic acid
0.0006 mol oxalic acid x (2 mol KMnO4)/(5 mol oxalic acid)=
0.000264 mol KMnO4
0.000264 mol/0.04899 L = 0.05388855 M KMnO4
= 0.005388 M KMnO4
where did I go wrong?
Question 7 0.1 / 1...
If 7.74 mL a 0.154 M solution of oxalic acid is mixed with 7.15 mL of water 6.12 mL of potassium permanganate, what is the new molarity of the oxalic acid--before a reaction takes place?
If 2.34 mL a 0.219 M solution of oxalic acid is mixed with 11.11 mL of water 11.88 mL of potassium permanganate, what is the new molarity of the oxalic acid--before a reaction takes place?
3. A potassium hydroxide solution was standardized against the solid acid, oxalic acid dihydrate. The volume of the potassium hydroxide solution required to neutralize 0.317 grams of oxalic acid dihydrate was 48.82 milliliters. Calculate the molarity of potassium hydroxide solution. 4. The molarity of phosphoric acid in a popular cola is to be determined. A 355 mL sample of the cola is O 103 M potassium hydroxide solution. Calculate the molarity of phosphoric acid in the cola.