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Leokris [45]
3 years ago
9

How many grams of Mn are there in 5.09 moles of Mn? grams

Chemistry
2 answers:
Vaselesa [24]3 years ago
6 0
<h3>Solution:</h3>

\text{mass of Mn = 5.09 mol Mn} × \frac{\text{54.94 g Mn}}{\text{1 mol Mn}}

\boxed{\text{mass of Mn = 279.6 g}}

qwelly [4]3 years ago
3 0

Explanation:

n=m/M

m=n*M

m=5,09 mol * 54,9g/mol

m= 279,4g

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3 years ago
Find concentration of solution of 45g of glucose is dissolved in water to prepare 500g solution?​
ivolga24 [154]

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9% solution by mass

Explanation:

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2 years ago
Which type of reaction does this diagram represent? (picture)
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3 years ago
Name the four elements on the Periodic Table that are considered METALLOIDS?​
Nimfa-mama [501]

Answer:

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5 0
4 years ago
0.023 M solution of perchloric acid
kogti [31]
The original question is to find the pH and the pOH of 0.023 M of perchloric acid.

Answer:
pH = 1.638
pOH = 12.362

Explanation:
1- getting the pH:
pH can be calculated using the following rule:
pH = -log[H+]
Since the given solution is an acid, this means that [H+] is the same as the concentration of the solution.
This means that:
[H+] = 0.023
Substitute in the above equation to get the pH as follows:
pH = -log[0.023]
pH = 1.638

2- getting the pOH:
We know that:
pH + pOH = 14
We have calculated that pH = 1.638.
Substitute in the above equation to get the pOH as follows:
pOH + 1.638 = 14
pOH = 14 - 1.638
pOH = 12.362

Hope this helps :)
5 0
4 years ago
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