We are given a solidA, which is a Group 2 carbonate, MCO3 (M is unknown) and we have to carry out a 'back titration'. We weigh 1.34grams of the solidAin a container. We then use a pipette to measure 50cm^3 of 1 mol dm^-3 aqeous Hydrochloric acid into a 250cm^3 volumetric f...
I then divided the amount of moles that I got for each element by the smallest one (the moles of phosphorus) to get the empirical formula and came up with Ca2PO4. For my conversion from grams to atoms I calculated the number of grams in the empirical formula and came up with 175.13 g...
Using a molar heat of combustion of hexane (C6H14)–4163 kJ/mol, the mass of hexane required to increase the temperature of 1.76 L of water from 21.0°C to 70.0°C is a.bc? g. Put your answer for a.bc in grams. Follow • 1 Add comment 1 Expert Answer Best Newest Oldest ...