To find the mass percent of dolomite, or CaMg(CO3)2, in a soil sample, a geochemist titrates 14.84 g of soil with 33.56 mL of 0.2516 M of HCL. What is the mass percent of dolomite in the soil?Can someone please show me how to do this step by step!
A certain tablet is advertised as containing 500mg of vitamin C. One tablet was dissolved in water and reacted with Br2. The solution was then titrated with 43.0ml of 0.135 M NaOH. Did the tablet contain the advertised quantity of Vitamin C? Provide evidence to support your answer.
The balanced equation is the following: CaMg(CO3)2 + 4 HCl -- 2 H2O + 2 CO2 + CaCl2 + MgCl2 0.03356 L x (0.2516 mol HCl / L) x (1 mol CaMg(CO3)2 / 4 mol HCl) x (184.4 g / mol) 0.3893 g dolomite Mass percent (0.3893 g / 14.84 g) x 100% 2.623%
