What is the charge of C in K2CO3?

Answer 1

+4.

Explanation

We know

Charge of K=+1

0=-2

Let x be the charge of C.

The sum of the charges in any compound must equal 0.

So,

+1*2+x+3*(-2)=0

+2+x-6=0

x-4=0

x=+4

The charge of C in K2CO3 is +4.

Answer 2

The oxidation number of potassium in compounds is always +1 and that of oxygen is almost always -2. Call the oxidation number of carbon in potassium carbonate n. Then, since the sum of the products of all the oxidation numbers of the elements in a compound multiplied by the number of atoms of that element must be 0, n + 2(1) + 3(-2) must be zero, or n must be +4.

Answer 3

The charge of carbon in K2CO3 is +4. This is because the overall charge of the compound K2CO3 is 0, and we know that potassium has a charge of +1 and oxygen has a charge of -2. By assigning these charges, we can determine that carbon must have a charge of +4 in order to balance out the charges in the compound.

Answer 4

K2C03 or potassium carbonate has a molar mass of 138.21 g/mol. It's density is 2.29 g/cm3