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How many liters of water vapor can be produced if 13.3 liters of methane gas (CH4) are combusted, if all measurements are taken at the same temperature and pressure?
if a 2.743g sample of MgSO4 7H2O were heated strongly, what would be the expected mass of the cooled dehydrated salt? (use M=246.471g mol-1 as the molar mass of MgSO4 7H2O.
water's heat of fusion is 80 cal/g and is specific heat is 1.0 cal/g degree celcius. Some velmobile set have been designed to hold ice packs inside their cushions.
A 5.00 g sample of KBr at 25.0°C dissolves in 25.0 mL of water also at 25.0°C. The final equilibrium temperature of the resulting solution is 18.1°C.
4.5 L of Mg(OH)2 solution was titrated with 5.03 mL of 0.200 M HCl. Calculate the the molarity of Mg(OH)2 solution and the ksp.
How did I get a greater than 100% recovery of benzoic acid?, To quickly summarize, the lab dealt with isolating benzoic acid from a mixture via chemically active extraction.
How many moles of N2 are produced by the decomposition of 1.40 of NaN3 ?
Calculate the number of grams of H2 formed If the wet Hydrogen gas formed occupies a volume of 9.67 Litres
Acid-base titration & analytical chemistry, A 0.213-g sample of uranyl(VI)nitrate, UO2(NO3)2, is dissolved in 20.0 mL of 1.0 M H2SO4 and shaken with Zn. The zinc reduces the uranyl ion, UO2 (with a charge of 2+)
how many grams of sucrose C12H22O11 must be added to 522g of water to give a solution a vapor pressure 2.0mmHg less than that of pure water at 20 degrees celsius
Unknown compound A (C8H12) is reacted with H2 (excess) in the presence of a palladium catalyst forming compound B (C8H16). In addition when compound A is reacted with O3 followed by zinc and acetic acid the following two compounds are formed
Determine the value of work (w) when a piston of volume 0.2 litres expands against an external pressure of 200 kPa to a volume of 3.4 Litres?
What is the fundamental difference between a voltaic cell and an electrolytic cell. Can a voltaic cell in which both half-reactions are the same generate a current.
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