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yaroslaw [1]
3 years ago
8

What is a percent volume of ethanol c2h60 in the final solution when 85 ml of it is diluted to a volume?

Chemistry
1 answer:
Ilya [14]3 years ago
3 0
34% I believe

Hope this helps!
STSN
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at room temperature table salt is a solid and mercury is a liquid. what conclusion can you draw about the melting points of thes
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Table slat has a low melting pointy while mercury has a high one
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5 0
3 years ago
The chemical equation below shows the formation of aluminum oxide (Al2O3) from aluminum (Al) and oxygen (O2).
Rufina [12.5K]

Answer:

Mass = 182.4 g

Explanation:

Given data:

Number of moles of Al₂O₃ = 3.80 mol

Mass of oxygen required = ?

Solution:

Chemical equation:

4Al + 3O₂    →       2Al₂O₃

Now we will compare the moles of aluminum oxide and oxygen.

                Al₂O₃           :           O₂

                   2               :            3

                 3.80            :         3/2×3.80 = 5.7

Mass of oxygen:

Mass = number of moles × molar mass

Mass = 5.7 mol × 32 g/mol

Mass = 182.4 g

4 0
2 years ago
2. As NH4OH is added to an HCl solution, the pH of the solution
chubhunter [2.5K]

Answer:

c

Explanation:

Nh4OH + HCL ---> NH4Cl + H3O

so ph decreases as H3O increases

and OH also decreases

5 0
3 years ago
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Answer:

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