3 years ago

8.45 cm - 3.55 cm = ?

Chemistry

2 answers:

lyudmila [28]3 years ago

6 0

Answer:

4.9cm or 4.90cm

Explanation:

Use column method and align the numbers. Make sure you add the decimal point before you write the answer, otherwise the value would be wrong.

mafiozo [28]3 years ago

5 0

Answer:

4.90

Explanation:

8.45.

-3.55

minus those two and you'll get the sum!

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Find the mass of 4.5 moles of H3PO4

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Hey there!

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O: 4 x 16 = 64

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

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The mass of 1 mole of H₃PO₄ is 97.994 grams.

We have 4.5 moles.

97.994 x 4.5 = 440

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