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Paraphin [41]
3 years ago
11

Use the periodic table to match each of the following element symbols to its name, atomic mass, or atomic number. (3 points)

Chemistry
1 answer:
bonufazy [111]3 years ago
8 0

Answer:

Tin I thunk

Explanation:

I think

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How many grams of h2 are needed to produce 10.78 g of nh3?
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Ammonia is formed by a reaction between hydrogen and nitrogen as shown by the equation below.
N2(g) + 3H2(g) = 2NH3(g)
1 mole of ammonia contains 17 g
Therefore 10.78 g of ammonia are equivalent to 10.78/17 = 0.6341 moles
The mole ratio of hydrogen to ammonia is 3 : 2
Therefore, moles of hydrogen used will be  0.6341 × 3/2 = 0.9512 moles
1 mole of hydrogen is equivalent to 2 g
Thus, the mas of hydrogen will be 0.9512 moles × 2 = 1.9023 g
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