Question

The gram formula mass of a compound is 48 grams. The mass of 1.0 moles of this compound is

(1) 1.0g
(2) 4.8g
(3) 48g
(4) 480g

Answer 1

The mass of 1.0 moles of this compound is (3) 48g.

Step-by-step explanation:

• The gram formula mass is defined as the amount of mass in 1.0 moles of a compound.

For example :

• For the water, we can calculate its gram formula mass using the molecular formula of the water :
  `H_(2)O`

• To calculate the gram formula mass we need the molecular mass of H (hydrogen) and O (oxygen).

μ(H) =
`1(g)/(mole)`

μ(O) =
`16(g)/(mole)`⇒ The gram formula mass of water is:

2 [ μ(H) ] + μ(O) =
`2(1(g)/(mole))+16(g)/(mole)=18(g)/(mole)`

So 1 mole of water contains 18 grams of water.

In the exercise, the gram formula mass of a compound is 48 grams. Therefore, 1 mole of the compound contains 48 g of compound.

Finally, the correct option is (3) 48g

Answer 2

gram formula mass means the mass of one moles of the compound
so The mass of 1.0 moles of this compound is 48g
so i conclude option 3 is correct
hope it helps