What is the molar mass of potassium dichromate k2cr2o7?
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Answered by
6
Hello!
We have the following data:
Molar mass of potassium dichromate k2cr2o7
K ≈ 2*39 ≈ 78 u
Cr ≈ 2*52 ≈ 104 u
O ≈ 7*16 ≈ 112 u
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Molar mass k2cr2o7 ≈ 78 + 104 + 112 ≈ 294 g/mol
I Hope this helps, greetings ... DexteR!
We have the following data:
Molar mass of potassium dichromate k2cr2o7
K ≈ 2*39 ≈ 78 u
Cr ≈ 2*52 ≈ 104 u
O ≈ 7*16 ≈ 112 u
-----------------------------------------
Molar mass k2cr2o7 ≈ 78 + 104 + 112 ≈ 294 g/mol
I Hope this helps, greetings ... DexteR!
Answered by
0
Answer: 294
Explanation: molar mass of potassium dichromate [K2CR2O7] = 2 (atomic mass of potassium) +2(atomic mass of chromium) +7(atomic mass of oxygen)
= 2(39) + 2(52) + 7(16)
= 78 + 104 +112 = 294
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