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Masteriza [31]
3 years ago
12

Most scientific questions are developed from

Chemistry
2 answers:
Margaret [11]3 years ago
8 0
They are developed from the theory and experiments conducted.
mamaluj [8]3 years ago
3 0
Most scientific questions are developed from Observations.
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Explain how original mass of dry ice compares with the mass of carbon dioxide gas?
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What is the volume of 18.9 g of a liquid that has a density of 0.956 g/ml
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6 0
3 years ago
What is the empirical formula of a compound containing 90 grams carbon, 11 grams hydrogen, and 35 grams nitrogen?
Anvisha [2.4K]

Answer:

= C3H4N

Explanation:

We are given; 90 grams carbon, 11 grams hydrogen, and 35 grams nitrogen.

We first calculate the number of moles of each element.

Carbon = 90g/12 g/mol

            = 7.5 moles

Hydrogen = 11 g/ 1 g/mol

                 = 11 moles

Nitrogen = 35 g/ 14 g/mol

               = 2.5 moles

The we get the mole ratio of the elements;

= 7.5/2.5 : 11/2.5 : 2.5 /2.5

= 3 : 4.4 : 1

= 3 : 4 : 1

Therefore;

The empirical formula will be; C3H4N

6 0
3 years ago
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