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MAXImum [283]
3 years ago
7

Jodie is studying the sleeping habits of various types of animals. She wants to know how long each type of animal sleeps during

the day.
Jodie puts each of the animals in a cage with food, water, and light. However, she cannot stay to watch the animals all day.

Which of the following tools would be most helpful to Jodie's experiment?
A.
a tape recorder
B.
a video camera
C.
a metric ruler
D.
a triple beam balance
Chemistry
1 answer:
LUCKY_DIMON [66]3 years ago
3 0
A. You want to check the sleeping schedule of the animals including the time.
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</span><span>In 1914 Henry Moseley found a relationship between an element's X-ray wavelength and its atomic number (Z), and therefore rearranged the table by nuclear charge / atomic number rather than atomic weight. Before this discovery, atomic numbers were just sequential numbers based on an element's atomic weight. Moseley's discovery showed that atomic numbers had an experimentally measurable basis.
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Answer: There will be 131.3 tons of SO_{2} that will be generated.


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So, moles of H_{2}S = (72 tons X 907.2 Kg/ton X 1000 g/Kg) / (34.082 g/ mol) = 1.916 X 10^{6} moles

Now, moles of O_{2} = (101 tons X 907.2 Kg/ton X 1000 g/Kg) / (32 g/mol) = 2.80 X10^{6} moles

And, H_{2}O = (38 tons X 907.2 Kg/ton X 1000 g/Kg) / (18.016 g/mol)

= 1.03 X 10^{6} moles


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so, 1.916 X 10^{6} moles / 2 moles of H_{2}S = 958 X 10^{3}


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So, 2.80 X10^{6} moles / 3 moles of O_{2} = 933.3 X 10^{3} moles


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Now converting this into mass,


Mass = Moles X Molar Mass

Mass = 1.86 X 10^{6} X (64.066 g/mol X 10^{-3} kg/g) X (1 ton / 907.2 Kg)

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