A scientist collects a sample of carbon dioxide that contains 25 moles of CO2. In grams, what is the mass of the sample?

one mole has mass 12+32 = 44 g

so, 25 moles = ?g

To find the mass of the sample, you need to know the molar mass of carbon dioxide (CO2).

The molar mass of an element or compound is the mass of one mole of that substance.

Carbon dioxide (CO2) consists of one carbon atom (C) and two oxygen atoms (O).

To calculate the molar mass of carbon dioxide, you can look up the atomic masses of carbon (C) and oxygen (O) on the periodic table. The atomic mass of carbon is approximately 12.01 grams/mol, and the atomic mass of oxygen is approximately 16.00 grams/mol.

Since there are two oxygen atoms in one molecule of carbon dioxide, you need to multiply the atomic mass of oxygen by 2.

Molar mass of carbon dioxide (CO2) = (1 x atomic mass of carbon) + (2 x atomic mass of oxygen)

Molar mass of CO2 = (1 x 12.01 g/mol) + (2 x 16.00 g/mol)

Molar mass of CO2 = 12.01 g/mol + 32.00 g/mol

Molar mass of CO2 = 44.01 g/mol

Now that you have the molar mass of carbon dioxide, you can calculate the mass of the sample.

Mass of the sample = number of moles x molar mass

Mass of the sample = 25 moles x 44.01 g/mol

Mass of the sample = 1100.25 grams

Therefore, the mass of the carbon dioxide sample is approximately 1100.25 grams.