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rusak2 [61]
3 years ago
12

Match each alkane name with its structure.

Chemistry
2 answers:
siniylev [52]3 years ago
8 0
1st one (smallest) C3H8: Propane
2nd one (2nd diagram) C7H16: Heptane
3rd one (3rd diagram) C8H18: Octane
4th one (4th diagram) C4H10: Butane
5th one (5th diagram) C10H22: Decane
9966 [12]3 years ago
6 0

C3H8 = Propane

C7H16 = Heptane

C8H18 = Octane

C4H10 = butane

C10H22 = decane

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Use the equation to determine what mass of FeS must react to form 326 g of FeCl2.
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Answer:

We need 226 grams of FeS

Explanation:

Step 1: Data given

Mass of FeCl2 = 326 grams

Molar mass FeCl2 = 126.75 g/mol

Step 2: The balanced equation

FeS + 2 HCl → H2S + FeCl2

Step 3: Calculate moles FeCl2

Moles FeCl2 = 326 grams / 126.75 grams

Moles FeCl2 = 2.57 moles

Step 4: Calculate moles FeS needed

For 1 mol H2S and 1 mol FeCl2 produced, we need 1 mol FeS and 2 moles HCl

For 2.57 moles FeCl2 we need 2.57 moles FeS

Step 5: Calculate mass FeS

Mass FeS = 2.57 moles * 87.92 g/mol

Mass FeS = 226 grams FeS

We need 226 grams of FeS

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