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An alcohol is 12.61 percent Hydrogen, 37.47 percent Carbon, and 49.92 percent Oxygen by mass. Determine the empirical formula of the alcohol ?
Determine what is element Y if you have a compound consists of element "Y" and H, only and know that it is 79.89% element Y by mass. Each molecule has 3.00 times as many H atoms as Y atoms?
Compute the number of grams of H 2 SO 4 in 1 gallon of battery acid if the solution is 38.9% sulfuric acid by mass and has a density of 1.33g/mL ?
Determine delta H of this reaction (kJ/mol H 2 SO 4 ) - When 24.4 mL of 0.500M sulphuric acid ,H 2 SO 4 is combined to 24.4ml of 1.00M potassium hydroxide KOH in a coffee cup calorimeter
Determine the percent by mass of calcium carbonate in the sample
What is the empirical formula of the compound if Quantitative analysis of a 5.00-g sample of a gaseous compound yielded the following results: 2.00 g sulfur and 3.00 g oxygen?
Determine the molarity of a solution of twenty grams of Ammonium bromide, NH4Br, in enough water to produce 132 mL of solution?
The resulting solution freezes at 26.5 oC. If Kf for the solvent is 1.74 o C/m then determine the molar mass of the nonelectrolyte compound?
For a solution having .0025 equivalents/liter total alkalinity (contributions from HCO3-, CO3-- and OH- (hydroxide)) at [H+] = 4.69E-11, what is the percentage contribution to alkalinity from CO3--?
What substance is in excess? D) How many grams of the excess reactant is leftover (remaining) after the reaction stops
what are the pH and the change in pH after the addition of 0.054 mol hydrochloric acid to the buffer solution?
Write the balanced chemical equation using the lowest possible whole number coefficients for Fe2O3+2Al = 2Fe+Al2O3.
Why does the same amount of liquid when left in a wider and flatter container evaporate quicker than when left in a narrower and deeper container?
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