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anzhelika [568]
3 years ago
11

10. What is the mass percentage of water in the hydrate CuSO4.5H2O?

Chemistry
1 answer:
Katena32 [7]3 years ago
7 0

Answer: 36.07%

Explanation: Please see attachment for explanation

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An artifact originally had 16 grams of​ carbon-14 present. the decay model upper a equals 16 e superscript negative 0.000121 ta=
xeze [42]

<u>Given:</u>

Initial amount of carbon, A₀ = 16 g

Decay model = 16exp(-0.000121t)

t = 90769076 years

<u>To determine:</u>

the amount of C-14 after 90769076 years

<u>Explanation:</u>

The radioactive decay model can be expressed as:

A = A₀exp(-kt)

where A = concentration of the radioactive species after time t

A₀ = initial concentration

k = decay constant

Based on the given data :

A = 16 * exp(-0.000121*90769076) = 16(0) = 0

Ans: Based on the decay model there will be no C-14 left after 90769076 years

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3 years ago
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A chemical reaction occurring in a cylinder equipped with a moveable piston produces 0.601 mol of a gaseous product. If the cyli
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Answer:

4.33 L

Explanation:

Assuming ideal behaviour and that all 0.300 moles of gas reacted, we can solve this problem using Avogadro's law, which states that at constant temperature and pressure:

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Where in this case:

  • V₁ = 2.16 L
  • n₂ = 0.601 mol
  • V₂ = ?
  • n₁ = 0.300 mol

We <u>input the given data</u>:

  • 2.16 L * 0.601 mol = V₂ * 0.300 mol

And <u>solve for V₂</u>:

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2 years ago
How many electrons are in the nucleus of an atom with an atomic number of 7?!!
zzz [600]
There are two electrons
7 0
3 years ago
What are three possible blood type alleles?
Keith_Richards [23]

Answer:

Three possible blood type alleles are Iᴬ, Iᴮ and i

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Iᴬ, Iᴮ and i are three possible blood type alleles.

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Thus, Three possible blood type alleles are Iᴬ, Iᴮ and i

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Animals get energy from the food that they eat. However, when the molecules from the food enter your cells, how do the molecules
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The ATP is broken down into glucose which the cells use for energy.

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