Question

How many grams of neon have the same no. Of atoms as 8g of calcium

Answer 1

Dear student. atomic mass of Ne = 20 u or 20 g ….(Case 1) moles = given Weight of substance/ Mass of the substance(molecular or atomic) atomic mass of Ca = 40 u or 40g......(Case 2) weight of each element given, weight of Ne = x g weight of Ca = 8g (from the question) Using the mole concept, no of moles of Ne= no of moles of Ca (using the mole formula) x/20 = 8/40 from this x’s values comes as 4g. Therefore weight of Ne = 4g. Regards