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Calculate the amount of heat released when 50g of steam at 100 degrees celsius hits the skin, condenses, and cools to a body temp of 37 degrees celsius.
How much heat is required to warm 229 g of ice from -44.9C to 0.0C, melt the ice, warm the water from 0.0C to 100.0C, boil the water, and heat the steam to 173.0C.
Determine the pH of a 0.432 M sodium acetate (NaC2H302) solutions
A piston has an external pressure of 13.00 atm. How much work has been done if the cylinder goes from a volume of 0.160 liters to 0.540 liters.
How many possible trisubstituted derivatives C6H3X2Y can be obtained from the para disubstituted benzene C6H4X2?
What volume of .250 M calcium chloride would be required to precipitate silver chloride if it is mixed with 600.0 ml of 0.650 M Silver nitrate.
Wine is made by adding yeast to grape juice. What concentration of glucose in grams per liter must the grape juice contain to produce wine that is 11% ethanol by volume? (take the density of ethanol to be 0.789 g/mL^-1) C6H12O6(aq)----> 2CH3CH2OH(..
An element has three naturally occurring isotopes with the following masses and abundances (in parenthesis): 27.977 amu (0.9222); 28.974 amu (0.0469); 29.974 amu (0.0310). Calculate the atomic weight of the element.
As a demonstration, an instructor had a block of ice suspended between two chairs. She then hung a wire over the block of ice, with weights attached to the ends of the wire.
A 35.0ml sample gas is enclosed is in a gas tight syringe at 22 degress celcius. If the syringe is immersed in an ice bath a 0 degress celcius, what is the new gas volume.
titrate the first HA solution with 87.4 mL of 0.0906 M NaOH and the mixture of HA and HB in the second flask with 94.0 mL of the NaOH solution. Calculate the molarity of the HA and HB solutions.
How many grams of chromium would be electroplated by passing a constant current of 5.2 amperes through a solution containing chromium(III) sulfate for 45.0 minutes.
derive an expression for the compression factor of a gas that obeys the equation of statenbsp pv - nb nrt where b and
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