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LenaWriter [7]
4 years ago
6

How many grams of N are in 89.0 g of NH4NO3

Chemistry
1 answer:
yarga [219]4 years ago
8 0
Step 1;calculate  the  molar  mass  of   NH4N03 
molar  mass  of different  element
N=14
H=1
O=16
therefore  molar  mass  of  NH4NO3   is 14+4+14+48= 80g/mol
step 2:find the  molar mass of N  present  in  NH4NO3
   That  is  14+14 =28g/mol
the mass  is  therefore
{(28g/mol/80g/mol) x 89g} =31.15g
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Calculate the entropy change for the reaction: Fe2O3(s) +3C(s) -> 2Fe(s) + 3CO(g)
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Answer:

ΔS = +541.3Jmol⁻¹K⁻¹

Explanation:

Given parameters:

Standard Entropy of Fe₂O₃ = 90Jmol⁻¹K⁻¹

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To find the entropy change of the reaction, we first write a balanced reaction equation:

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Therefore:

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5 0
3 years ago
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Answer:

The correct answer is A Energy leaves the iron bar and enters the wood until the temperature are equal.

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