Question

Сколько молекул находитса в 1 грам серной кислоты?

Answer 1

Дано:
m(H2SO4)=1 г
Найти:
N(H2SO4)=?
Решение:
M(H2SO4)=98 г/моль
N=Na (число Авогадро) * n
n=m:M
n=1:98=0,01 моль
N=0,01 моль * 6 * 10 в 23 степени=0,06*10 в 23 степени молекул

Answer 2

Number of Molecules in 1 Gram of Sulfuric Acid

Sulfuric acid has a molar mass of approximately 98.1 grams per mole and a molecular formula of H2SO4. To calculate the number of molecules in 1 gram of sulfuric acid, we can use the following steps:

1. Calculate the number of moles in 1 gram of sulfuric acid: - The molar mass of sulfuric acid (H2SO4) is approximately 98.1 grams per mole.

- Using the formula: \[ \text{Number of moles} = \frac{\text{Mass}}{\text{Molar mass}} \] we can calculate the number of moles in 1 gram of sulfuric acid.

2. Convert moles to molecules: - Once we have the number of moles, we can use Avogadro's number to convert moles to molecules.

Let's calculate the number of molecules in 1 gram of sulfuric acid using the provided information.

Calculation

1. Calculate the number of moles in 1 gram of sulfuric acid: - \(\text{Number of moles} = \frac{1 \, \text{gram}}{98.1 \, \text{grams/mole}}\)

- \(\text{Number of moles} \approx 0.0102 \, \text{moles}\)

2. Convert moles to molecules: - Avogadro's number states that there are \(6.022 \times 10^{23}\) molecules in one mole of a substance.

- Number of molecules in 1 gram of sulfuric acid \(= 0.0102 \, \text{moles} \times 6.022 \times 10^{23} \, \text{molecules/mole}\)

- Number of molecules in 1 gram of sulfuric acid \(\approx 6.14 \times 10^{21}\) molecules

Therefore, there are approximately 6.14 x 10^21 molecules in 1 gram of sulfuric acid.