A tablet containing calcium carbonate and fillers with a mass of 1.631 g was dissolved in HCl. After the fillers were filtered out, the HCl was neutralized by adding sodium carbonate. The resulting precipitate was pure calcium carbonate (with the fillers removed). The solid calcium carbonate was collected on a watch glass that had a mass of 46.719 g when empty. After the calcium carbonate had been allowed to dry, the mass of the watch glass plus product was found to be 47.623
What is the mass of pure calcium carbonate product collected at the end of the experiment?
Calculate the mass % of calcium carbonate in the tablet?
mass CaCO3 ppt is 47.623-46.719 = ?
% = (mass CaCO3/1.631)*100 = ?
Actual mass=47.623-46.719=0.904g. mass of CaCo3(Ca=40,C=12,O=16X3=48.40+12+48)=100g %=100/1.631X100
To calculate the mass of pure calcium carbonate product collected, we need to determine the mass of the watch glass plus the product and subtract the mass of the empty watch glass.
Mass of watch glass + product = 47.623 g
Mass of empty watch glass = 46.719 g
Mass of pure calcium carbonate product = (Mass of watch glass + product) - (Mass of empty watch glass)
Mass of pure calcium carbonate product = 47.623 g - 46.719 g
Mass of pure calcium carbonate product = 0.904 g
Therefore, the mass of pure calcium carbonate product collected at the end of the experiment is 0.904 g.
To calculate the mass percentage of calcium carbonate in the tablet, we can use the following formula:
Mass % of calcium carbonate = (Mass of calcium carbonate / Mass of tablet) x 100
We know the mass of the tablet (1.631 g), and we have just calculated the mass of the pure calcium carbonate product (0.904 g).
Mass % of calcium carbonate = (0.904 g / 1.631 g) x 100
Mass % of calcium carbonate = 55.49%
Therefore, the mass percentage of calcium carbonate in the tablet is 55.49%.
To calculate the mass of pure calcium carbonate product collected, we need to subtract the mass of the empty watch glass from the mass of the watch glass plus the product.
Mass of calcium carbonate product = Mass of watch glass plus product - Mass of empty watch glass
Mass of calcium carbonate product = 47.623 g - 46.719 g = 0.904 g
Therefore, the mass of pure calcium carbonate product collected at the end of the experiment is 0.904 g.
To calculate the mass percentage of calcium carbonate in the tablet, we need to find the ratio of the mass of calcium carbonate to the mass of the tablet, and then multiply by 100.
Mass % of calcium carbonate = (Mass of calcium carbonate / Mass of tablet) x 100
The mass of the tablet is the initial mass of the tablet minus the mass of the fillers that were filtered out.
Mass of tablet = Initial mass of tablet - Mass of fillers
Mass of tablet = 1.631 g - (Mass of watch glass plus product - Mass of empty watch glass)
Let's calculate the mass of the tablet first:
Mass of tablet = 1.631 g - (47.623 g - 46.719 g)
Mass of tablet = 1.631 g - 0.904 g
Mass of tablet = 0.727 g
Now we can calculate the mass percentage of calcium carbonate:
Mass % of calcium carbonate = (0.904 g / 0.727 g) x 100
Let's calculate this:
Mass % of calcium carbonate = 1.244 x 100
Mass % of calcium carbonate = 124.4%
Therefore, the mass percentage of calcium carbonate in the tablet is 124.4%.