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Olenka [21]
3 years ago
11

1. A gas has a volume of 50.0 mL at a temperature of -73°C. What volume

Chemistry
1 answer:
Anton [14]3 years ago
3 0
This is your answer:


-13 degrees C
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How are the water carbon and nitrogen cycles related?

The three main cycles of an ecosystem are the water cycle, the carbon cycle and the nitrogen cycle. These three cycles working in balance are responsible for carrying away waste materials and replenishing the ecosystem with the nutrients necessary to sustain life.

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what is the empirical formula for a compound that is 50.61% copper 11.16% nitrogen and 38.23% oxygen
jonny [76]

Answer:

CuNO3

Explanation:

In order to calculate the empirical formula in this question;

Cu = 50.61% = 50.61g

N = 11.16% = 11.16g

O = 38.23% = 38.23g

Next, we convert each gram unit to moles by dividing by their respective molar mass (Where; Cu = 63.55, N = 14, O = 16)

Cu = 50.61 ÷ 63.55 = 0.796mol

N = 11.16 ÷ 14 = 0.797mol

O = 38.23 ÷ 16 = 2.389mol

Next, we divide each mole value by the smallest (0.796)

Cu = 0.796mol ÷ 0.796 = 1

N = 0.797mol ÷ 0.796 = 1.001

O = 2.389mol ÷ 0.796 = 3.001

Approximately, the simple whole number ratio between Cu, N and O is 1:1:3, hence, the empirical formula is CuNO3.

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2 years ago
What is the ratio of carbon, hydrogen, and oxygen in most carbohydrates?
Bumek [7]

Answer:

1:2:1

Explanation:

i just think hai .its just a guess from my side...sorry if i m wrong...

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