Revised Question: How can I obtain molarities of the final solutions with this information that I...

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Chemistry

Revised Question: How can I obtain molarities of the finalsolutions with this information that I was told to record in Chem 1Lab? It asks for a molarity of the final solution for EACH part. Asin, does (AI) has its own molarity of the solution and (A2) has itsown molarity if the final solution or does A1 and A2 have the samemolarity of the solution? Same thing for Bl and B2.

Part: AI.

Mass of Cu(CH3COO)2•H2O: 2.495 g

Moles of Cu(CH3COO)2•H2O: 199.654 g/mol

Molarity of final solution: ???

A2.

Volume of Solution AI used: 10 mL

Molarity of final solution: ???

( I got 1.2 M from the data of Al and A2 but is that themolarity of the final solution for both Al and A2?)

*NOTE: My professor did not have us collect thedirect data for a volume for Part A1. It was not in our proceduresor table. But if it helps once we weighted the mass ofCu(CH3COO)2•H2O = 2.495 g, we then added 25 mL of distilled waterto the 50 mL beaker to dissolve it. This is why I got confused whenfirst calculating part A1.

Part:BI.

Molarity of stock KMnO4: 0.02011 M

Volume of stock: 20 mL

Molarity of final solution: ???

B2.

Volume of solution BI used: 10mL

Molarity of final solution: ???

(I got 0.04022 M for the molarity of the final solutionfrom both sets of data but is that the molarity for Bl andB2?)

Part: CI.

Molarity of stock K2CrO4: 1.25 x 10^-3 M

Volume of stock solution used (V1): 7 mL

Volume of stock solution used (V2): 10 mL

Molarity of final solution: ???

( I got the molarity of the final solution = 8.75 x10^-4 M)

A1 volume=25ml

Answer & Explanation Solved by verified expert
3.7 Ratings (660 Votes)
1 Given for A1 solution Volume of solution taken 25ml Mass of CuCH3COO2H2O present 2495 g Again molar mass of CuCH3COO2H2O 199654 gmol So mols of CuCH3COO2H2O present mass molar mass 2495 g 199654 gmol 00125 mols So molarity of solution    See Answer
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