30 g of element x contains `18.069 xx 10^(23)` atoms of x. Calculate gram-molecular mass of `x_(2)`

6 xx 10^(24) atoms of an element weight 200g. If this element forms homodiatomic gas (X_(2)) then calculate gram molecular mass of X_(2) (N_(A) = 6 xx 10^(23))

6 xx 10^(24) atoms of an element weight 200g. If this element forms homodiatomic gas (X_(2)) then calculate gram molecular mass of X_(2) (N_(A) = 6 xx 10^(23))

2.49 xx 10^(-18)g of an element X contains 2.0 xx 10^(4) atoms. What is the atomic mass of the element X ?

2.49 xx 10^-18 g of an element. A contains 2.0 xx 10^4 atoms. What is, the atomic mass of the element A?

The mass of one atom of an element X is 2.0 xx 10^(-23) g . (i) Calculate the atomic mass of element X. (ii) What could element X be ?

1 gram of hydrogen contains 6xx10^(23) atoms. Then 4 grams of He contains

Weight of one atom an element is 6.44 xx 10^(23) g . Calculate g atom of elements in 40 kg .