Egg laying hens are fed a calcium supplement in the form of shell grit, consisting of crushed sea shells and sand. To investigate shell grit for calcium carbonate content, a 10 g sample is mixed with excess hydrochloric acid. The mass of the reaction mixture is monitored using an electronic balance. The mixture decreases by 2.75 g as the reaction proceeds.
a. Account for the change in mass of the reaction mixture.
b. Write a balanced equation for the mixture.
c. Calculate the mass AND percentage by mass of the calcium carbonate in the sample
d. Describe a suitable procedure to separate a dried sample of the unreacted residue, for further analysis.
Thanks
a. Account for the change in mass of the reaction mixture.
b. Write a balanced equation for the mixture.
c. Calculate the mass AND percentage by mass of the calcium carbonate in the sample
d. Describe a suitable procedure to separate a dried sample of the unreacted residue, for further analysis.
Thanks