Question

Calculate no. of moles of H2C2O4.2H2O (oxalic acid) in 6.3g of

oxalic acid.​

Answer 1

Explanation:

no. of moles= given no. of moles / molecular weight of compound

oxlaicacid=

H2C2O4.2H2O=2×2+2×12+4×16+2×2×2×16

= 128

no. of moles = 6.3/128

=0.0492...

=0.5 moles

no. of molecules= 6.022 ×10 raised to 23×0.5

= 3.011 × 10 raised to 23