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Bingel [31]
2 years ago
13

Work out the size of angle X which is 123° and 42° and x help me​

Chemistry
1 answer:
Sloan [31]2 years ago
7 0
Dude drop a photo of the question, what you’re saying make no sense
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What geopolitical process returns carbon to the atmosphere in the from of carbon dioxide
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3 years ago
Find the mass of 4.5 moles of H3PO4
Contact [7]

Hey there!

H₃PO₄

Find molar mass.

H: 3 x 1.008 = 3.024

P: 1 x 30.97 = 30.97

O: 4 x 16 = 64

---------------------------------

                  97.994 grams

The mass of 1 mole of H₃PO₄ is 97.994 grams.

We have 4.5 moles.

97.994 x 4.5 = 440

The mass of 4.5 moles of H₃PO₄ is 440 grams.

Hope this helps!

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2 years ago
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