How many grams of cuso4*5h2o should be dissolved

Reference no: EM13702847

Problem- 1. Copper (II) sulphate pentahydrate, CuSO4*5H2O, has 5 moles of water for each mole of CuSO4 in the solid crystal. The molar mass for the pentahydrate is 249.68 g/mol. Copper (II) sulphate without water in the crystal structure is called anhydrous, and would have molar mass of 159.61 g/mol. How many grams of CuSO4*5H2O should be dissolved in a volume of 500.0 mL to make 8.00 mM Cu2+?
2. An iron ore is analyzed for iron content by dissolving in acid, converting the iron to Fe2+, and then titrating with standard 0.0150 M K2Cr2O7 solution. If 35.6 mL is required to titrate the iron in a 1.68 g sample, how much Fe2+ is in the sample?

The titration reaction is: 6 Fe2+ + Cr2O72- + 14 H+ à 6 Fe3+ + 2 Cr3+ + 7 H2O.

Please explain above problem in step by step manner so I can easily understand it

Reference no: EM13702847

Questions Cloud

What is the weight percent of ki in the original mixture : The solution is filtered and treated with KSCN to precipitate the excess silver as AgSCN. 0.0140 g of AgSCN are recovered. What is the weight percent of KI in the original mixture

Evaluate what is the gazelle top speed : A Thomson's gazelle can run at very high speeds, but its acceleration is relatively modest. What is the gazelle's top speed

What mass of chlorine, cl2, is required to completely react : Problem- Given the following reaction, what mass of chlorine, Cl2, is required to completely react with 26.27 g of PH3? (Molar masses: PH3 33.99 g/mol; Cl2 70.90 g/mol; PCl3 137.32 g/mol; HCl 36.46 g/mol) PH3 + 3 Cl2 --> PCl3 + 3 HCl

Estimate how much time will have elapsed : An electron with a speed of 8.50 108 cm/s enters an electric field of magnitude 1.00 103 N/C, How much time will have elapsed

How many grams of cuso4*5h2o should be dissolved : How many grams of CuSO4*5H2O should be dissolved in a volume of 500.0 mL to make 8.00 mM Cu2+?2. An iron ore is analyzed for iron content by dissolving in acid, converting the iron to Fe2+, and then titrating with standard 0.0150 M K2Cr2O7 solutio..

Estimate the length of the pipe : Three successive resonance frequencies in an organ pipe are 1470, 2058, and 2646 Hz. What is the length of the pipe

Estimate the depth of the shaft : Working for a small gold mining company, you stumble across an abandoned mine shaft that, because of decaying wood shoring, looks too dangerous to explore in person. Estimate the depth of the shaft

The sum of the subscripts in the empirical formula : Problem- Prior to their phaseout in the 1980s, chemicals containing lead were commonly added to gasoline as anti-knocking agents. A 8.907 g sample of one such additive containing only lead, carbon and hydrogen was burned in an oxygen rich environm..

What is the greatest length of an organ pipe : The normal range of hearing is about 20 to 20000 Hz. Assume that your hearing range is 27 to 19500 Hz. (Use 340 m/s as the speed of sound.) What is the greatest length of an organ pipe

User Account

All Pages