Question

How many moles are in 48 grams of magnesium Mg?

Answer 1

Answer:

Perfect questions for guys interested in maths..

2. The value of x + x(xx) when x = 2 is:

(a) 10, (b) 16, (c) 18, (d) 36, (e) 64

Solution:

x + x(xx)

Put the value of x = 2 in the above expression we get,

2 + 2(22)

= 2 + 2(2 × 2)

= 2 + 2(4)

= 2 + 8

= 10

Answer: (a)

Answer 2

Explanation:

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Question

Calculate the number of atoms in 48 g of Mg.

Answer · 21 votes

Moles of Mg = 4824 = 2 Number of atoms of Mg = Moles × Avogadro number = 2 × 6.023 × 10^23 = 12.04