To find the mass percent of dolomite [CaMg(CO3)2] in a soil sample, a geochemist titrates 11.30 g of soil with 35.90 mL of 0.2516 M HCl. What is the mass percent of dolomite in the soil?Show work!!!!!
REMEMBER: YOU HAVE TO CONVERT TO MOLES TO DO THESE PROBLEMS. Find the moles of HCl (0.0359L*0.2516Molar) M1 Check reaction for conversion from HCl to dolomite CaMg(CO3)2 + 4 HCl CaCl2+MgCl2+2H2CO3 Number of moles of dolomite reacting with HCl M1/4 Mass of dolomite in soil molwt dolomite*M1/t Percent dolomite in soil mass dolomite*100/soil wt.
yes. with that kinda of heat it will degrade the molecules of the dye. therefore fading
From titration, 35.90mL x .2516M 9.032mmol so, there are 0.009032 moles of dolomite in 11.3g of soil the molar mass 11.3/0.009032 1251.05 g/mol molar mass of dolomite 184.4 g/mol % of dolomite in soil 184.4/1251.05 x 100% 14.74%
