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enot [183]
3 years ago
12

The half life or radium 226 is 1630 years

Chemistry
1 answer:
ELEN [110]3 years ago
5 0

So what is the question?

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Give three properties of a Solid
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Oxygen gas was produced in a reaction and collected over water. A 136.1 mL mL sample of gas was collected over water at 25C and
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Answer:

Explanation:

We shall find volume of gas at NTP or at 273 K , 760 mm of Hg .

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128.26 x 10⁻³ L of oxygen will have mass of 32 x 128.26 x 10⁻³ / 22.4 g

= 183.22 mg .

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Given: g on moon = –1.63 meters/second2
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