Question

Помогите найти Mr(C2H2O4)

Answer 1

С=12
H=1
O=16
Cледовательно, 12*2+1*2+16*4=90

Answer 2

Mr(C2H2O4) refers to the molar mass of the compound C2H2O4. To find the molar mass, we need to calculate the sum of the atomic masses of all the atoms in the compound.

The compound C2H2O4 consists of 2 carbon atoms (C), 2 hydrogen atoms (H), and 4 oxygen atoms (O).

To calculate the molar mass, we can use the atomic masses of carbon (C), hydrogen (H), and oxygen (O) from the periodic table.

The atomic mass of carbon (C) is approximately 12.01 atomic mass units (amu), the atomic mass of hydrogen (H) is approximately 1.01 amu, and the atomic mass of oxygen (O) is approximately 16.00 amu.

Therefore, the molar mass of C2H2O4 can be calculated as follows:

(2 * atomic mass of C) + (2 * atomic mass of H) + (4 * atomic mass of O) = (2 * 12.01 amu) + (2 * 1.01 amu) + (4 * 16.00 amu) = 24.02 amu + 2.02 amu + 64.00 amu = 90.04 amu

So, the molar mass of C2H2O4 is approximately 90.04 amu.

Please note that the molar mass may vary slightly depending on the isotopic composition of the elements involved.