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Suppose that 0.92 of water condenses on a 85.0 block of iron that is initially at 22. If the heat released during condensation goes only to warming the iron block, what is the final temperature (in ) of the iron block? (Assume a constant enthalpy of vaporization for water of 44.0 .)
For 550.0 mL of pure water, calculate the initial pH and the final pH after adding 0.010 mol of pH
How many molecules of sucrose (table sugar), C12H22O11, dissolved in 450.0 g of water are needed to make a 1.30 m solution?
if it takes 6.02 kJ of heat energy to melt a mole of ice, how much heat is absorbed when 6.30 g of water melts?
Two compounds of nitrogen tetroxide(N2O4) and hydrazine(N2H4) are used as rocket fuels.When the two are mixed,they ignite and produce nitrogen gas and water.
What would the theoretical yield in moles be and how would you calculate that? What would the theoretical yield in grams be and how would you calculate that?
a piston has an external pressure of 10.0 atm. How much work has been done is the cylinder goes from a volume of 0.180 liters to 0.630 liters
A 0.50 sample of vegetable oil is placed in a calorimeter. When the sample is burned, 18.9 are given off. what is the caloric value of the oil
How many grams of CaH2 are needed to generate 147 L of H2 gas if the pressure of is 824 torr at 295K ?
A car travels at 58.0 miles per hour and gets 10.0 kilometers per liter of gasoline. How many gallons of gasoline are needed for a 1.00 hour trip.
The reaction between white phosphorous and oxygen produces solid tetra phosphorus decoxide (P 4 O 10 ).
Provide the newman projections across the C 2 -C 3 bonds for the major conformers after Drawing the zig-zag structures of all the isomers of 2,3-diaminopentane.
How many kilograms of sodium fluoride would be needed to treat a 8.00 x 10^7 gal reservoir
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