Question

Mr (CO2) =Mr (NaHCO3) =Mr (CuSO4) =​

Answer 1

Ответ:

1)44

2)84

3)160

Объяснение:

1)Mr(CO2)=12+16*2=44

2)Mr(NaHCO3) = 23+1+12+16*3=84г/моль

3)Mr(CuSO4)=64*3+164=160г/моль

Answer 2

Mr (Co2) = 12 + 32 = 44 г/моль
Mr (CuSO4) = 64 + 32 + 64 = 160 г/моль
Mr(NaHCO3) = 23+1+12+16*3=84г/моль

Answer 3

The molar mass (Mr) is a measure of the mass of one mole of a substance. Here are the molar masses for the compounds you mentioned:

• Carbon dioxide (CO2): The molar mass of carbon (C) is approximately 12.01 grams per mole, and the molar mass of oxygen (O) is approximately 16.00 grams per mole. Since carbon dioxide has two oxygen atoms, we multiply the molar mass of oxygen by 2 and add it to the molar mass of carbon:

Mr (CO2) = 12.01 g/mol + 2 * 16.00 g/mol = 44.01 g/mol

• Sodium bicarbonate (NaHCO3): The molar mass of sodium (Na) is approximately 22.99 grams per mole, the molar mass of hydrogen (H) is approximately 1.01 grams per mole, the molar mass of carbon is approximately 12.01 grams per mole, and the molar mass of oxygen is approximately 16.00 grams per mole.

Mr (NaHCO3) = 22.99 g/mol + 1.01 g/mol + 12.01 g/mol + 3 * 16.00 g/mol = 84.01 g/mol

• Copper sulfate (CuSO4): The molar mass of copper (Cu) is approximately 63.55 grams per mole, the molar mass of sulfur (S) is approximately 32.07 grams per mole, and the molar mass of oxygen is approximately 16.00 grams per mole.

Mr (CuSO4) = 63.55 g/mol + 32.07 g/mol + 4 * 16.00 g/mol = 159.61 g/mol

So, the molar masses are:

• Mr (CO2) = 44.01 g/mol
• Mr (NaHCO3) = 84.01 g/mol
• Mr (CuSO4) = 159.61 g/mol