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Gre4nikov [31]
3 years ago
14

Question: Consider the molecule cyclohexene, which

Chemistry
1 answer:
babymother [125]3 years ago
8 0

Answer:

The simplest formula is C₃H₅.

Explanation:

The moles of CO₂ are the moles of Carbon because oxygen is in excess. Thus, the double of moles of H₂O are the moles oh hydrogen (Double because H₂O has two hydrogens for each mole).

4,822g CO₂ × (1mol / 44,01 g) = 0,1096 moles of C

1,650g H₂O × (1mol / 18,01 g) × 2= 0,1832 moles of H

The next step is divide these numbers between the smaller one, thus:

0,1096 moles / 0,1096 moles = 1

0,1832 moles / 0,1096 moles = 1,672

The last step is to find a number to multiple that gives integers:

1 × 3 = 3 Carbon

1,672 × 3 = 5 hydrogen

Thus, the simplest formula is C₃H₅.

I hope it helps!

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Copper (II) sulfate pentahydrate may be heated to drive off the water of hydration. If 5 g of water are produced, what was the o
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Answer:

13.9g of CuSO4•5H2O

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

CuSO4•5H2O → CuSO4 + 5H2O

Next, we shall determine the mass of CuSO4•5H2O heated and the mass of H2O produced from the balanced equation.

This is illustrated below

Molar mass of CuSO4• 5H2O = 63.5 + 32 + (16x4) + 5(2x1 + 16)

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Mass of CuSO4•5H2O from the balanced equation = 1 x 249.5 = 249.5g

Molar mass of H2O = (2x1) + 16 = 18g/mol

Mass of H2O from the balanced equation = 5 x 18 = 90g

From the balanced equation above,

249.5g of CuSO4•5H2O produced 90g of H2O.

Now, we can determine the mass of CuSO4•5H2O needed to produce 5g of H2O. This can be achieved as shown below:

From the balanced equation above,

249.5g of CuSO4•5H2O produced 90g of H2O.

Therefore, Xg of CuSO4•5H2O will produce 5g of H2O i.e

Xg of CuSO4•5H2O = (249.5 x 5)/90

Xg of CuSO4•5H2O = 13.9g

Therefore, 13.9g of CuSO4•5H2O is needed to produce 5g of H2O.

6 0
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elena-s [515]

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bearhunter [10]

Answer:

6. d,  7. a

Explanation:

6. Molarity is a number of moles solute in 1 L solution.

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