018302 001608 3. (part a). You are given 0.104 g of a sample of KwFex(C204)y(H₂O) z. In the laboratory, you titrate this sample with 0.00940 M KMnO4 and you need 10.1 mL of the KMnO4 solution to reach the stoichiometric point. Calculate the mass and moles of [C₂04]²- in the sample. Please show all of your detailed calculations. $

Please write the molecular equation when mixing the following two aqueous salts: P b ( N O 3 ) 2 ( a q ) + K I ( a q ) ⟶ ???     ***All chemical equations must be balanced, have proper subscripts/superscripts, and list the state of the chemical***

Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the unwieldy formula of KHC8H4O4. This is often written in shorthand notation as KHP.If 33.7 mL of a sodium hydroxide solution are needed to neutralize 1.28 grams of KHP, what is the molarity of the sodium hydroxide solution?

A sample of 1.975 g oxalic acid dehydrate (H2C2O4 . 2H2O) was dissolved in enough water to make a 250.0 mL solution. What is the concentration of oxalic acid in the solution?In solid form, the dihydrate crystal lattice contains two water molecules for every oxalic acid molecule. The water molecules must be included as part of the molar mass. The molar mass of H2C2O4 * 2H2O is 126.064 g/mol. Oxalic acid is a diprotic acid (H2A). Write the balanced reaction for aqueous oxalic acid reacting with aqueous potassium hydroxide. If 20.00 mL of the oxalic acid solution described above is placed in a flask and then titrated with 0.1525 M potassium hydroxide, what volume of the potassium hydroxide solution would be required for a complete reaction?

12.8 mL of 0.0354 M potassium permanganate solution is used to titrate 0.188 g of an unknown sample containing iron (II).  Calculate the percent by mass of an iron (II) in the unknown sample.

If 50.0 g of water is combined with 155.3 g of PCl3, PCl3(l) + 3H2O (l) --> H3PO4 (aq) + 3HCl (aq) what is the limiting reagent?

Determine the molarity of 3.56 kg of CuSO4·5H2O in 1.518 L of solution

Paylben

A student determined the concentration of NaOCI in a commercial bleach sample using the same technique described in section "F" of the Halogens and Their Compounds lab. The student required 18 drops of 0.01M Na,S203 to reach the end point. What is the concentration (reported in molarity) of NaOCI in the bleach sample?

Zinc and magnesium react with hydrochloric acid to produce the metal chlorides and hydrogen gas. A 10.00 gram smaple of a mixture of Zn and Mg was with the stoichiometric quanitity of HCl. The reaction mixture was then reacted with 156 mL of 3.00M silver nitrate to produce the maximum quantity of silver chloride. First determine the % magnesium in the mixture- then, if 76.0 mL of HCl was added, what was the molarity of the HCl?