h2SO4(aq)+2NAOH(aq)--->NA2SO4(aq)+2H2O(L) how to solve this

How to solve what? You have nothing listed except an equation and that isn't written correctly.

The given chemical equation represents the reaction between sulfuric acid (H2SO4) and sodium hydroxide (NaOH) to produce sodium sulfate (Na2SO4) and water (H2O). The coefficients in front of each chemical formula show the number of moles of each substance involved in the reaction.

To solve this equation, we need to balance it so that the number of atoms of each element is the same on both sides of the equation. Here's how you can do it:

1. Start by counting the number of each type of atom on both sides of the equation.

On the left-hand side:
- H: 2
- O: 4
- S: 1
- Na: 2

On the right-hand side:
- H: 4
- O: 2
- S: 1
- Na: 2

2. Balance the atoms one by one, starting with the elements that appear in the fewest compounds.

Let's balance sulfur (S) first:
- The left side has 1 sulfur atom, so we need 1 sulfate ion (SO4) on the right side.

Now let's balance oxygen (O):
- The left side has 4 oxygen atoms from the sulfuric acid, and 2 from the water. In total, we have 6 oxygen atoms on the left side.
- The right side only has 2 oxygen atoms from the water.
- To balance the oxygen, we need to put a coefficient of 3 in front of the water molecule on the right side. This gives us 3 water molecules, which means 6 oxygen atoms.

Now let's balance hydrogen (H):
- The left side has 2 hydrogen atoms from the sulfuric acid, and 6 from the water. In total, we have 8 hydrogen atoms on the left side.
- The right side has 4 hydrogen atoms, which is already balanced.

Finally, let's balance sodium (Na):
- The left side has 2 sodium atoms, and the right side has 2 sodium atoms. This is already balanced.

The balanced equation is:
H2SO4(aq) + 2NaOH(aq) → Na2SO4(aq) + 2H2O(L)

This shows that 1 mole of sulfuric acid reacts with 2 moles of sodium hydroxide to produce 1 mole of sodium sulfate and 2 moles of water. Note that "(aq)" represents an aqueous solution, and "(L)" represents a liquid state.