PLEASE WALK ME THROUGH SEP BY STEP ON HOW TO SET UP THE CORRECT EQUATION AND HOW TO SOLVE IT. i HAVE NO IDEA WEHERE TO START!A sample of dolomite limestone containing only CaCO3 and MgCO3 was analyzed. When a 0.4500 gram sample of this limestone was decomposed by heating 85.0 milimeters of CO2 at 760 mmHg and 23 (degrees) were evolved. a. how many grams of CO2 were produced?b. How would I write a decomposistion equation for both carbonates that were described.
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1) Use PV nRT to find number of moles, and multiply by molar mass of CO2 to find number of grams. 2) You should be able to find out the equation for decomposition of a metal carbonate in your course materials. The next question is going to be, how much of each carbonate did you have? You are going to have to solve a pair of simultaneous equations: If you have X moles CaCO3 and Y moles MgCO3, then X + Y n (why?) X(molar mass CaCO3) + Y(molar mass MgCO3) 0.4500 g (how did I know that?)
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