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Problem- A certain substance has a heat of vaporization of 39.18 kJ/mol. At what Kelvin temperature will the vapor pressure be 3.50 times higher than it was at 363 K?
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If the specific heat of the solution is 4.18 J/g(g*degreesC), calculate delta H for the reaction, as written. Ba(s) + 2H2O(l) = Ba(OH)2 (aq) + H2 (g) Delta H=?
Explain the heat of combustion for a sample of coal is 23.0kJ/g. Explain what quantity of coal (in grams) must be burned to heat 500.0 g of water from 20.0 degrees C to 95.0 degrees C. The specific heat capacity of water is 4.184 J. Is this answer..
An air bubble initially trapped in the tip of the buret containing the standard NAOH disappears during the titration , Explain how will this affect the reported number of moles in the unknown acid
explain why you would expect deltah neutzn for hbr reacting with naoh solution and deltah nertzn for hno3 reacting with
strontium nitrate and calcium carbonate are soluble salts B. barium fluoride and lithium chloride are soluble salts C. barium nitrate and sodium phosphate are soluble salts
What mass of carbon dioxide (in ) is produced upon the complete combustion of 18.9 of propane (approximate contents of one 5-gallon tank). Assume that the density of the liquid propane in the tank is 0.621.
What are the units for absorptivity where the path length is given in centimeters and the concentration is expressed in. a. parts per million
The solubility of cerium sulfate, Ce2(SO4)3, in water is 0.34 g per 100 mL at 100 °C and 14.2 g per 100 mL at 10 °C. Is the dissolving of cerium sulfate in water an endothermic or exothermic process
How many milliliters of 0.5 M NaOH are needed to exactly neutralize 100 milliliters of 1 M HCl?
Sulfur trioxide is used in the industrial production of sulfuric acid. The industrial and natural conversion of sulfur dioxide to sulfur trioxide can be represented by the following reaction
Calculate how many moles of sodium phosphate are needed to react completely with 4.6 mol of calcium nitrate( Ca(NO 3 ) 2 ) to form sodium nitrate (NaNO 3 ) and calcium phosphate?
Which of these gases will have the greatest density at the same specified temperature and pressure. A) H2 B) CClF3 C) CO2 D) C2H6 E) CF4 8. What is the molar mass of Freon-11 gas if its density is 6.13 g/L at STP
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