Question

how many atoms of carbon are present in 25g of CH3OH​

Answer 1

Answer:

4.70 X 10^23

Explanation:

To calculate no. of carbon atom first calculate the no. of moles in the given mass

given mass of CH3OH=25g

Molar mass of CH3OH= 32g

no of moles=given mass/molar mass=25/32=0.7812

1 mole of CH2OH=6.022 X 10^23 atoms of C

0.7812 moles of CH2OH= 0.7812 X 6.022 X 10^23= 4.78 x 10^23 atoms of C

Answer 2

Answer:

Let's Frist calculate the molar mass of Ch3oh =12+3(1)+16+1=32g. In 32g of ch3oh there is 1 mole of carbon. In 25g of Ch3oh the atoms of c=0.7mol