Question

Evaluate Yourself?
2) Calculate the relative molecular mass
Nof the following
) Ethanol(C2H5OH)
(1) Potassium permanganate (KMnO4)
(iii) Potassium dichromate (K2 Cr202)
iv) Sucrose (C12H22011)​

Answer 1

Answer:

1) 46 g/mol

2) 158 g/mol

3) 214 g/mol

4) 342 g/mol

Explanation:

1) C2H5OH

2(12) + 6(1) + 16 = 46 g/mol

2) KMnO4

39 + 55 +4 (16) = 158 g/mol

3) K2Cr2O2

2(39) + 2(52) + 2(16) = 214 g/mol

4) C12H22O11

12(12) +22(1) + 11(16) = 342 g/mol