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saw5 [17]
3 years ago
9

A sample with a molar mass of 34.00 g/mol is found to consist of 5.9783% Hydrogen and 94.0217% oxygen. Find it’s molecular formu

la.
Chemistry
1 answer:
kozerog [31]3 years ago
5 0

Answer:

The formula is H202 (hydrogen peroxide, known as hydrogen peroxide)

Explanation:

100%----34g

5, 9783%---X= (5, 9783%x 34g)/100% =2 g

1g---1 atom of H

2g----x= 2g x 1 atom of H/1g = 2 atom of H

100%----34g

94, 0217%---X= (94,0217%x 34g)/100% =32 g

16g---1 atom of 0

32g----x= 32g x 1 atom of 0/16g = 2 atom of 0

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6 0
3 years ago
2. How many grams of water can be heated from 20.0 oC to 75oC using 12500.0 Joules?
kenny6666 [7]

Answer;

  = 0.054 kg or 54 g

Explanation;

Using the equation; Q = mcΔT where Q is the quantity of heat transferred, m is the mass, c is specific heat of the substance, ΔT is delta T, the change in temperature.  

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m = Q/ cΔT

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4 0
3 years ago
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JulijaS [17]

Answer:

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I hope this is helpful

4 0
3 years ago
In which of the following is most of the water on earth held?
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A force of 350 N causes a body to move with an acceleration of 10 m/s2. What's the mass of the body?
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I hope this helps.
3 0
3 years ago
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