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denis23 [38]
2 years ago
7

5. How many grams of potassium bromide will dissolve in 450g of water at 80°C?

Chemistry
1 answer:
Shtirlitz [24]2 years ago
6 0
Hi mate. I think the answer is 100
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A water sample has a pH of 8.2 and a bicarbonate concentration of 97 mg/L. What is the alkalinity of the sample in moles/L and i
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Answer:6.94

Explanation:

Molar mass of CaCO3=40+12+16×3

=40+12+48=100g/mol

Moles=mass of substance/molar mass

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PH=-log[CaCo3]=-log(0.00097)=6.94

P.s it's log to base e

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3 years ago
What do we call the type of chemical reaction that occurs in this step? Explain how the name of this type of reaction relates to
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2 years ago
A given mass of air has a volume of 8.00 L at 60.0°C. At constant pressure, the temperature is increased to 80.0°C. Calculate th
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Answer:

D. 6.00 L

Explanation:

What we have here is an example of Boyle's Law. The equation here is P₁ · V₁ = P₂ · V₂. We know all of the values except for V₂.

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<em>Multiply 60 by 8 to get 480.</em>

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What chemical process occurs in cells to release energy?
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Answer:

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C6H12O6 + 6O2 -> 6CO2 + 6H20 + 38ATP  

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