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KiRa [710]
3 years ago
14

What is an isotope ? And how do we use it ?

Chemistry
1 answer:
Sergeu [11.5K]3 years ago
3 0
Somewhat of the same element, have same amount of protons but different number of neutrons. <span />
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A mixture of 4.0g H2 (g) and He (g) in a 4.3L flask is maintained at 0°C. Determine the total pressure in the container?​
salantis [7]

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Explanation:

4 0
4 years ago
A sample of rest of the following composition 51.85 g of iron 22.22 g of oxygen 16.67 g of water
valentinak56 [21]

Answer:

To calculate the percent composition, we need to know the masses of C, H, and O in a known mass of C9H8O4. It is convenient to consider 1 mol of C9H8O4 and use its molar mass (180.159 g/mole, determined from the chemical formula) to calculate the percentages of each of its elements:

%

C

9

mol C

×

molar mass C

molar mass

C

9

H

18

O

4

×

100

=

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×

12.01

g/mol

180.159

g/mol

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=

108.09

g/mol

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3 0
2 years ago
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ExtremeBDS [4]

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Explanation:

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5 0
3 years ago
What state does a maple tree enter during the winter?
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2 years ago
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