Question

Задачу по физике сколько малекул в 88 граммах угликислога газа?задача по физике

Answer 1

Calculation of the Number of Molecules in 88 grams of Carbon Dioxide Gas

To calculate the number of molecules in a given amount of a substance, we can use the concept of molar mass and Avogadro's number.

1. Molar Mass of Carbon Dioxide (CO2): The molar mass of carbon dioxide (CO2) is the sum of the atomic masses of carbon (C) and two oxygen (O) atoms. The atomic mass of carbon is approximately 12.01 grams per mole, and the atomic mass of oxygen is approximately 16.00 grams per mole. Therefore, the molar mass of carbon dioxide is:

Molar mass of CO2 = (12.01 g/mol) + 2 * (16.00 g/mol) = 44.01 g/mol

2. Avogadro's Number: Avogadro's number (NA) is a fundamental constant that represents the number of particles (atoms, molecules, or ions) in one mole of a substance. Its value is approximately 6.022 × 10^23 particles per mole.

Now, we can calculate the number of molecules in 88 grams of carbon dioxide gas using the following steps:

1. Determine the number of moles of carbon dioxide: Number of moles = Mass of substance / Molar mass

Number of moles of CO2 = 88 g / 44.01 g/mol = 2 moles

2. Calculate the number of molecules: Number of molecules = Number of moles * Avogadro's number

Number of molecules in 2 moles of CO2 = 2 moles * (6.022 × 10^23 molecules/mol) = 1.2044 × 10^24 molecules

Therefore, there are approximately 1.2044 × 10^24 molecules in 88 grams of carbon dioxide gas.

Please note that the above calculation assumes ideal conditions and uses average atomic masses.