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10g of CaCO3 are treated with a solution of HCl and 1.12 litre of CO2 are produced at STP . find out the number of moles of HCl in the solution?
Determine the molar concentration of CH 3 COOH present in the vinegar?
Determine which metal will reach the lowest temperature If the same amount of heat is added to both the metals?
Suppose that you have 1.55grams of nitroglycerin( also known as nitroglycerine, trinitroglycerin, trinitroglycerine) in a 603.0 mili litres of steel container at 20 degree celsius and one atm pressure.
how many grams of NO are required to produce 145 g of N2 in the following reaction? 4NH3+6NO-- 5N2+6H2O
Write the electron configuration of selenium. List the following compounds in order of increasing lattice energy: NaCl, NaBr, MgO, CaO.
Determine which species is present in the lowest concentration in 0.10 M H3A solution?
The Party Guy, Mr. Balloon, is making animal figures out of long thin balloons that he twists into different shapes. Assume that the balloons are of uniform thickness.
Calculate molarity of a KCl solution prepared by dissolving 0.525 moles of Kcl in 250. mL of water.
What is the mole fraction of HO2CCH2CHOHCO2H in this solution suppose you dissolve 2.56 grams of malic acid HO2CCH2CHOHCO2H in 50.0 grams of H 2 O.?
Determine the volume of the gas at a pressure of 150.0 kPa and a 26 degree Celsius of temperature?
pKa of a carboxylic acid group found on a molecule of DOM is 4.2 and pKa of An amino group found on a molecule of DOM is 9.3. Explain how pH influences the ability of these groups to bind to metals. Illustrate how well each of these groups would b..
Determine what is the mass percent yield from 2.57 grams of Sb in excess Sulphur , if 1.56 g of Sb 2 S 3 is obtained?
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