Consider the following dilution steps from a 3.51 M stock solution of H2SO4. 1.

Question

Consider the following dilution steps from a 3.51 M stock solution of H2SO4. 1. 25. mL of the 3.51 M stock solution is diluted to 150. mL to make soln2. 2. 35. mL of soln2 is diluted to 200. mL to make soln3. 3. 45. mL of soln3 is diluted to 250. mL to make soln4. 4. 50. mL of soln4 is diluted to 300. mL to make soln5. • Calculate the concentration, in M, for soln5. • Derive a single equation to calculate the concentration of soln5 using only the molatiry of the stock solution and the various volumes.

Explanation / Answer

Solution :

3.51M *1.25ml = M5 *150ml *200ml*250*300ml / 2.35ml*3.50ml*4.50ml

M5 = 7.2*10^*8M

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