7. A small amount of CuSO4*5H20 (0.973 g) was dissolved in 100.0 mL of water, When a 10.0 mL aliquot was titrated with EDTA, the endpoint was reached at 38.05 mL. A 10.0 mL aliquot of a 100.00 mL sample of unknown copper solution was also titrated with the same solution of EDTA. The endpoint was reached at 35.23 mL. What is the mass of Cu?' in the unknown solution?
4. (2 pts) Calculate the mass of CuSO4 5H20 required to prepare 4.0 mL of 0.040 M CuSO4 solution. Enter your answer in the box and show your work in the space below. Record the value in your lab notebook, as you will need it to complete the experiment. g
CuSO4• 5H20 -------> Custy + D u 2) What is the color for anhydrous salt of copper (II) sulfate (CuSO4)? What is the color for ionic hydrate compound of copper (II) sulfate pentahydrate (CuSO4.5H2O)? 3) How would you test a colorless crystalline compound to determine whether it is a hydrate or not? 4) How many grams of CuSO4.5H20 are needed to prepare 50.0 mL of a 1.00 M CuSO4 solution? 5) Suppose you used the Procedure in this experiment to...
1. Name the following compounds: a. NH,NO, b. Pb(NO), 2. Name the following compounds: a. CuSO4·5H20 b. CoCI, .6H2O 3. What are the seven (7) diatomic molecules 4. The thermal decomposition of 1.826g of a hydrate of MnC12 produces 1.161g of anhydrous MnC12. Calculate the mass percent of water in the hydrate.
12. If the student began with 83.2 g of copper(II) sulfate pentahydrate, CuSO4 . 5H20, how much Cu2l2 could be made? Note: The molecular weights of CuSO4· 5H20 and Cu212 are 249.5 g and 380.8 g, respectively.] A. 31.81g B. 63.5g C. 127 g D. 190 g
Mass CuSO4 • 5H2O 3.50g Initial mass, Zinc Wire 3.50g Final Mass, Zinc Wire 2.65g Mass, Zinc Reacted Moles, Zinc Reacted Mass, Evaporating dish + dried Copper (1st weigh) 44.68g Mass, Evaporating dish + dried Copper (2nd weigh) 44.68g Mass, Evaporating dish 43.88g Mass, Copper produced Moles, Copper Produced Replacement Ratio, mol Cu/mol Zn Percent Copper in CuSO4 • 5H2O (Experimental) Molar mass of CuSO4 5H2O Percent Copper in CuSO4 • 5H2O (Theoretical) Percent Error in percent copper I need...
The deep blue compound Cu(NH3)4SO4 is made by the reaction of copper(II) sulfate and ammonia. CuSO4(aq) + 4NH3(aq) → Cu(NH3)4SO4(aq) If you use 47.0 g of CuSO4 and excess NH3, what is the theoretical yield of Cu(NH3)4SO4? If you isolate 38.2 g of Cu(NH3)4SO4, what is the percent yield of Cu(NH3)4SO4? ______ g Cu(NH3)4SO4 _______ %
A mixture of CuSO4 and CuSO4 5 H2O has a masS of 1.270 g. After heating to drive off all the water, the mass is only 0.859 g. What is the mass percent of CuSO4 5 H2O in the mixture? Mass percent
What mass of CuSO4 would you have to dissolve in 1L of water to make 500 ppm solution of CU^2+?
What is the percent composition by mass of the solute of a sugar solution (sugar is C12H22O11) that has a mole fraction of the solute of 0.09816?