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How many grams of ice would be melted by the energy obtained as 23.6 g of water vapor is condensed at 100 degrees celcius and cooled to liquid at 0 degrees celcius. Given info- (specific heat ice: 2.10J/gramdegree celcius, water: 4.18J/gramdegree celsius, heat of fusion 333 J/g, heat of vaporizatoin: 2258 J/g) Please show work. Dont you need a starting gaseous temp to start this problem
What is the molality of a solution of aluminum nitrate that contains 31.0 g of Al(NO3)3 dissolved in 295.0 g of water? Use molar masses with at least as many significant figures as the data given. What is the molality of each of the ions in soluti..
The osmotic pressure of a aqueous solution of a given polymer with mass concentration 0.300 g/mL is 10.0 torr at 298 K. Estimate the molar mass of the polymer.
Calculate equilibrium concentration of Ag+ in a solution that is initially 0.110M AgNO3 and .870M NH3 and in which the following reaction takes place
Applying energy to dry ice causes the molecules to phase change straight from a solid to a gas, sublimation. When gas particles hit the walls of a container, they exert pressure. As we apply energy to dry ice, the gas molecules move faster which..
A buffer is prepared by mixing 453 mL of 0.143 M HCl with 983 mL of 0.848 M ammonia (NH3). Given that the Kb of NH3 is 1.8 x 10-5, calculate the pH of the solution.
Use the dipole moments of and ( = 1.08, = 1.82) together with the percent ionic character of each bond ( 20% ionic, 45% ionic) to estimate the bond length in each molecule.
A protein has been eluted from a DEAE-cellulose column by washing with a salt-containing solution. Before the protein is subjected to a quantification assay,
ammonia nh3 kb 1.8 x 10-5 is added to 100 ml of water at room temperature. the vapor pressure of the water above the
a chemist wishing to do an experiment requiring 47ca half-life 4.5 days needs 5.0 mg of the nuclide. what mass of
bismuth oxide reacts with carbon to form bismuth metalbi2o3s 3cs gt 2bis 3cog.when 325 g bi2o3 reacts with excess
How many moles of Al2S3 are produced using 12.8 grams of Al and 7.59 x 10-2 moles of S8
in the preparation of the esters given in this reaction the reaction product is extracted with 5 sodium bicarbonate
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