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guajiro [1.7K]
2 years ago
12

How many kilometers are in a 7.21. mm

Chemistry
1 answer:
Readme [11.4K]2 years ago
6 0

Answer:

0.00000721 Kilometer

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254950m to millimeter
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254950000 millimeters
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3 years ago
How many grams of carbon would be present in carbon monoxide that contains 2.6 grams of oxygen?
Andreas93 [3]

Answer:

1.95g

Explanation:

Find mass in CO

Find C mass

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2 years ago
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frosja888 [35]

Answer:

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Explanation:

-24

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3 years ago
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3 years ago
14.2 grams of Na2SO4 is dissolved in water to make a 2.50 L
Trava [24]

Answer:

0.04 M

Explanation:

Given data:

Mass of Na₂SO₄= 14.2 g

Volume of solution = 2.50 L

Molarity of solution = ?

Solution:

Number of moles of Na₂SO₄:

Number of moles = mass/ molar mass

Number of moles = 14.2 g/ 142.04 g/mol

Number of moles = 0.1 mol

Molarity :

Molarity = number of moles of solute / volume of solution in L

Molarity = 0.1 mol / 2.50 L

Molarity = 0.04 M

6 0
3 years ago
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