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dezoksy [38]
2 years ago
9

3. How many moles are 1.707 x 10^24 atoms of carbon?

Chemistry
1 answer:
Paraphin [41]2 years ago
8 0

Answer:

2.835 moles of carbon

Explanation:

By definition, there are 6.022x10^23 atoms (or compounds) in one mole.

Write and use this as a conversion factor:

(6.022x10^23 atoms)/mole

(1.707 x 10^24 atoms of carbon)/((6.022x10^23 atoms)/mole) = 2.835 moles carbon

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the pig's average speed is 7 m/s

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The natural abundances of elements in the human body, expressed as percent by mass, are oxygen (o), 65 percent; carbon (c), 18 p
Vlada [557]

It is given that the person weighs 62 kg = 62,000 g

Natural abundances in mass percent are:

O = 65%

C = 18%

H = 10%

N = 3.0%

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P = 1.2%

Corresponding weights of the elements are:

O = 65/100 * 62000 g = 40.30 * 10^3 g

C = 18/100 * 62000 g = 11.16 * 10^3 g

H = 10/100 * 62000 g = 62.00 * 10^2 g

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Ca = 1.6/100 * 62000 g = 9.92 * 10^2 g

P = 1.2/100 * 62000 g = 7.44 * 10^2 g


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3 years ago
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A tau lepton decays into an electron, an electron antineutrino and a tau neutrino. Write out this reaction in symbolic (equation
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.

Explanation:

hhidhwvagaue hrurifv3v2vd

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2 years ago
True/False: When a substance is heated, the change in energy causes the bonds between particles to become stronger.​
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Hypochlorous acid decays in the presence of ultraviolet radiation. Assume that degradation occurs accord- ing to first-order kin
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Answer:

35.75 days

Explanation:

From the given information:

For first-order kinetics, the rate law can be expressed as:

\mathsf{In \dfrac{C}{C_o} = -kt}

Given that:

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current concentration C = 0.05 mg/L

initial concentration C₀ = 3.65 mg/L

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㏑(0.01369863014) = -(0.12) t

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t = -4.29/-0.12

t = 35.75 days

3 0
2 years ago
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