Question

Q. Calculate the mass of a) one atom of calcium b) one molecule of water c) one mole of glucose

Please give the answer in detail friends....

Answer 1

Answer:

Explanation:

a)1  atom of calcium weighs 20g

b) 1 molecule of water weighs 18 g

c) 1 mole of glucose is 180

As these are values of the mass of which is been asked....

Hope it helps.............

pls mark brainlest........

Answer 2

a) Mass of atom of calcium= gram atomic mass = 40g

Atomic mass of an atom is equal to number of protons and neutrons in the nucleus as no of protons i.e atomic number and no. of neutrons is 20 in Ca nucleus . So, it's mass number is 40.

b)One molecule of water weighs i.e. H2O= molecular weight of water= 2(H) + O

=2❌1+ 16. =18gram

(c) Molecular formula of glucose is C6 H12O6=

6C +12 H+ 6 O

=6❌12 ➕ 12❌1 ➕ 6❌16

=72+ 12+ 96

=180 g.