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3 years ago

If 0.251moles of H2O gas are produced, how many liters of oxygen gas was used?

Chemistry

1 answer:

Alborosie3 years ago

4 0

Answer:

o.251 prduces 45.7L of oxogen

Explanation:

hope this helps

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The concentration of dye in Solution A is 26.609 M. You have 13 mL of water at your disposal to make the dilutions. The solution

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Answer:

6,613 M

Explanation:

Dilution is the process of reducing the concentration of a solute in solution, mixing initial solution with more solvent.

The concentration of Solution B is:

23,881 M × = 9,552 M

Because the initial eight parts are diluted to 12+8 parts.

Thus, concentration of solution C is:

9,552 M × = 6,613 M

I hope it helps!

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2 years ago

How does the distance between the planet Earth and the Sun compare with the distances between the planet Earth and other stars?

Paha777 [63]

I think C, but I could be wrong

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3 years ago

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Carbon-14 is a radioactive isotope that decays according to first-order kinetics in a process that has a half-life of 5730 years

Sliva [168]

Answer : The time passed in years is $2.83\times 10^3\text{ years}$

Explanation :

Half-life = 5730 years

First we have to calculate the rate constant, we use the formula :

$k=\frac{0.693}{t_{1/2}}$

$k=\frac{0.693}{5730\text{ years}}$

$k=1.21\times 10^{-4}\text{ years}^{-1}$

Now we have to calculate the time passed.

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $1.21\times 10^{-4}\text{ years}^{-1}$

t = time passed by the sample = ?

a = let initial amount of the reactant = X g

a - x = amount left after decay process = $71\% \times (x)=\frac{71}{100}\times (X)=0.71Xg$

Now put all the given values in above equation, we get

$t=\frac{2.303}{1.21\times 10^{-4}}\log\frac{X}{0.71X}$

$t=2831.00\text{ years}=2.83\times 10^3\text{ years}$

Therefore, the time passed in years is $2.83\times 10^3\text{ years}$

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2 years ago

A box has a mass of 150kg. If a net force of 3000N acts on the box, what is the box's acceleration?

zhannawk [14.2K]

Answer:

3000 ÷ 150

Explanation:

acceleration = N/kg

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2 years ago

3) Which of the following transformations creates a figure that is similar (but not congruent) to the

kherson [118]

C is the answer Because it’s not

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3 years ago

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