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Zina [86]
3 years ago
13

Równania reakcji chemicznej

Chemistry
1 answer:
Aliun [14]3 years ago
5 0

Answer:

Reakcja chemiczna jest opisana równaniem chemicznym, wyrażeniem określającym tożsamość i ilość substancji biorących udział w reakcji. Równanie chemiczne pokazuje początkowy związek (związki) - reagenty - po lewej stronie, a końcowy związek (związki) - produkty - po prawej stronie, oddzielone strzałką.

Explanation:

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Find the number of grams in 16.95 mol hydrogen peroxide (H2O2). Round your
Feliz [49]

Answer: There are 576.46 number of grams present in 16.95 mol hydrogen peroxide (H_{2}O_{2}).

Explanation:

Number of moles is defined as the mass of substance divided by its molar mass.

The molar mass of H_{2}O_{2} is 34.01 g/mol. Hence, mass of hydrogen peroxide present in 16.95 moles is calculated as follows.

Moles = \frac{mass}{molarmass}\\16.95 mol = \frac{mass}{34.01 g/mol}\\mass = 576.46 g

Thus, we can conclude that there are 576.46 number of grams present in 16.95 mol hydrogen peroxide (H_{2}O_{2}).

3 0
3 years ago
Some gas was collected when the pressure was 760mmHg. It occupied 500mL when the pressure was increased to 800mmHg. What was the
Ivan

Answer:

<h3>The answer is 526.32 mL</h3>

Explanation:

To find the original volume we use the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we are finding the original volume

V_1 =  \frac{P_2V_2}{P_1}  \\

From the question we have

V_1 =  \frac{500 \times 800}{760}  =  \frac{400000}{760}  =  \frac{40000}{76}  \\  = 526.315789...

We have the final answer as

<h3>526.32 mL</h3>

Hope this helps you

6 0
3 years ago
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