All categories

3 years ago

Now liters at the same temperature and pressure: liters of H2 + liters of O2 → liters of H2O

Chemistry

1 answer:

iragen [17]3 years ago

5 0

The answer is 2H2 + O2----> 2H2O

You might be interested in

What is the best thing to study in Antartica?

Dvinal [7]

The animals, climate, weather.

5 0

3 years ago

Read 2 more answers

When a sample of gas is cooled, it condenses into a liquid. In which of the following ways do the molecules of the original gas

Amanda [17]

c. The molecules are closer together as a gas than they do as a liquid.

3 0

4 years ago

Question 28 (2 points)

Afina-wow [57]

Answer:

Il of the above are part of the Kinetic Molecular Theory

Explanation:

4 0

3 years ago

Chooses the name of the cellular process that match the organelle shown

otez555 [7]

Answer:

chloroplast photosynthesis

Explanation:

Photosynthesis is the process by which green plants create their own food by turning light energy into chemical energy. ... Cellular respiration, on the other hand, is the process by which living things convert oxygen and glucose to carbon dioxide and water, thereby yielding energy.

5 0

3 years ago

A particular oral contraceptive contains 0.038 mg of ethinyl estradiol in each pill. The formula of this compound is C20H24O2. H

Ray Of Light [21]

Answer: The number of molecules of ethinyl estradiol present in one pill are $7.71\times 10^{16}$

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Given mass of ethinyl estradiol = 0.038 mg = $3.8\times 10^-5}g$ (Conversion factor: 1 g = 1000 mg)

Molar mass of ethinyl estradiol $(C_{20}H_{24}O_2)=[(20\times 12)+(24\times 1)+(2\times 16)]=296g/mol$

Putting values in above equation, we get:

$\text{Moles of ethinyl estradiol}=\frac{3.8\times 10^{-5}g}{296g/mol}=1.28\times 10^{-7}mol$

According to mole concept:

1 mole of a compound contains $6.022\times 10^{23}$ number of molecules

So, $1.28\times 10^{-7}mol$ of ethinyl estradiol will contain = $(1.28\times 10^{-7}\times 6.022\times 10^{23})=7.71\times 10^{16}$ number of molecules

Hence, the number of molecules of ethinyl estradiol present in one pill are $7.71\times 10^{16}$

5 0

3 years ago