How will i calculate the molar mass of ethanol ( C2H5OH)and the number of hydrogen atoms present in 2.3g of it?
Answers
Answered by
108
Molar mass of ethanol can be calculated as following- (MM means molar mass)
MM of C * 2 + MM of H *5 + MM of O + MM of H
(12*2)+(1*5)+(16)+(1)
24+5+16+1
46 g
Now,
Since, in 46g of C2H5OH -->6 H atoms are present
So, in 2.3 g of C2H5OH --> 6*2.3/46 = 0.3 H atoms
MM of C * 2 + MM of H *5 + MM of O + MM of H
(12*2)+(1*5)+(16)+(1)
24+5+16+1
46 g
Now,
Since, in 46g of C2H5OH -->6 H atoms are present
So, in 2.3 g of C2H5OH --> 6*2.3/46 = 0.3 H atoms
Answered by
88
the answer is
46u
carbon = 12
hydrogen =1
oxygen = 16
12×2+1×5+16+1
=46u
hope it works for you guys
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