Which of the following contains equal number of atoms as 12 gram of magnesium?
(A)12 gram of carbon
(B) 20 gram of calcium
(C) 24 gram of carbon.
(D) 40 gram of calcium
PLEASE GIVE ME THE ANSWER SOON
Answers
= 24g × 12 = 288g
At. mas of Carbon=12g
= 12g × 24 = 288g
(C) 24gram of carbon,
is the correct answer...
Answer: (C) 24gram of carbon,
Explanation:
At. mass of magnesium =24g
= 24g × 12 = 288g
At. mas of Carbon=12g
= 12g × 24 = 288g
(C) 24gram of carbon.
Since every element has an Avogadro number of atoms per mole,
As a result, the number of atoms in an equal number of moles of various elements will be the same.
As a result, 12 g of magnesium will have exactly as many atoms as 20 g of calcium.
Atoms in 12 g of 2412Mg (0.5 mol) total 3.01 1023. (A)
11 g of CO2 (0.25 mol) has 3.01 1023 atoms of oxygen in it (B)
Hydrogen atoms total 6.02 1023 per mol in 4 g of CH4 (0.25% mol) (C)
Sulfur atoms are present in 46 g of N2O4 (0.5 mol), or 2mol, or 26.021023 atoms (D)
Sulfur atoms in 79 g of Na2S2O3 (0.5 mol) weigh 1 mol or 6.02 x 1023 atoms (the molar masses of CO2, CH4, N2O4, and N2S2O3 are 44, 16, 92, and 158 gmol, respectively).
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