find the number of protons present in 16 g of methane

Dear Student,
Mass of methane given = 16g
​Molar mass  = 16g
No. of moles of  methane = given mass / molar mass = 16/16 = 1 mol

​1 mol of  CH₄ contains 10moles of protons. ( 6 protons in carbon, 4 protons in Hydrogen )
no. of protons in 1 mol = 6.022 X 10²³
no. of protons in 10 moles = 6.022 X 10²³ = 60.22 X 10²³ protons.

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