:1g of powdered marble was weighed out and placed in a 100mL beaker. 5 mL of HCL was added to it and then swirled. After 5 minutes, the solution was decanted from the solid and the solids were washed with 2 mL of acid. 300 mL of water was then put into a beaker and placed on a plate and the solution is transferred to a 10mL graduated cylinder. Water was added to raise the solution to 10mL. Then the contents were poured to 18x150mm test tube. A Mohr pipet was used to transfer 1 mL of solution in 3 separate 15x125mm test tubes. 2 drops of methyl indicator