Answer:
Explanation:
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In this case, according to the given chemical reaction:
2 Al + 3 Cl2 --> 2 AlCl3
Whereas there is a 2:3 mole ratio of aluminum to chlorine; it will be possible for us to calculate the required grams of aluminum by using the equality 22.4 L = 1 mol, the aforementioned mole ratio and the atomic mass of aluminum (27.0 g/mol) to obtain:
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Answer: Carbon-14 has an atomic mass of 14 ( = 6 protons + 8 neutrons).
Answer:
John Dalton, an English chemist and meteorologist, is credited with the first modern atomic theory based on his experiments with atmospheric gases.
Answer:
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Explanation:
Answer:
Mass = 3.752 g
Explanation:
Given data:
Number of moles of Li = 0.536 mol
Mass of N₂ needed = ?
Solution:
Chemical equation:
2Li + N₂ → 2LiN
Now we we will compare the moles of Li and N₂.
Li : N₂
2 : 1
0.536 : 1/2×0.536 = 0.268 mol
Mass of N₂
Mass = number of moles × molar mass
Mass = 0.268 mol × 14 g/mol
Mass = 3.752 g