30 " mL of " a solution containing `9.15gL^(-1)`
of an oxalate `K_(x)H_(y)(C_2O_4)_2.nH_2O` required for titration 27 " mL of " 0.12 N NaOH and 36 " mL of " 0.12 N `KMnO_4` for oxidation Find x,y,z. and n.

Explanation

To solve the problem step by step, we will first determine the normality of the oxalate solution and then use the titration data to find the values of x, y, z, and n in the formula \( K_xH_y(C_2O_4)_2 \cdot nH_2O \).

### Step 1: Calculate the moles of NaOH used in the titration
Given:
- Volume of NaOH = 27 mL = 0.027 L
- Normality of NaOH = 0.12 N

Using the formula:
...