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given that the specific heat capacities of ice and steam are 2.06 j/g degrees C and 2.03J/g degrees C, respectively, calculate the total quantity of heat evolved when 10.0 g of steam at 200 degrees C is condensed, cooled, ad frozen to ice at -50 degrees C
Calculate mass, mole fraction and avg. molecular weight of air, Calculate the constituent (a) mass, (b) mole fraction (c)average molecular weight of air at 25 degree centigrade, 1 atm, and molar density of all listed gases
A student wants to conduct an experiment requiring 500 ml of a 3 M sulfuric acid 18 M concentrated sulfuric acid is available. How could the student prepare the desired solution
If 36.0 mL of 0.150 M HCl(aq) is needed to neutralize all the NH3(g) from a 2.25-g sample of organic material, calculate the mass percentage of nitrogen in the sample.
Calculate the percent KBr in the mixture. Calculate the percent Mg(OH)2 in the mixture. Calculate the percent BaSO4 in the mixture
What is the difference in the chemiacl potential of this gas and an ideal gas at the same pressure and temperature?
Under identical conditions, seperate samples of O2 and an unknown gas were allowed to effuse through identical membranes simultaneously.
which had been effectively diluted to a volume of 200mL? b) how many grams of Cu were in the sample? c) how many grams of Cl were in the sample? How many moles? d) What is the formula of the copper chloride compound?
Constant pressure molar heat capacity of a compound is found to vary with temp, according to molar cp= 15.25 +.138* T--2.21*10^4/T^2 Calculate the enthalpy change when 1 mole of this compound
Calculate How many grams of H2O at temperature 25 degree Celsius should be poored on the ice with no water in flask initially.
Concentration : Dilution Problem, A student placed 18.5g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-mL mark on the neck of the flask was ..
Multiple choice questions in Nuclear reactions - make nuclear fission more efficient, which device is used in a nuclear reactor to slow the speed
Greg Nard added an equivalent of 3,4-epoxy-4-methylcyclohexanol to an ether solution of methyl magnesium bromide and then added dilute hydrochloric acid. He expected that the product would be a diol. He did not get any of the expected product.
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