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Assume that a particular reaction evolves 243 kJ of heat and that 28 kJ of PV work is gained by the system....? 1) What are the values of delta E and delta H for the system? 2) What are the values of delta E and delta H for the surroundings?
How many grams will remain after 98.0 days if Phosphorus-32 has a half-life of 14.0 days Starting with 6.00g of ,?
By titration, 23.4 mL of aqueous H2SO4 neutralized 24.8 mL of 0.0495 M LiOH solution. What was the molarity of the aqueous acid solution?
a 97 gram solution of silver nitrate contains 21 grams of AgNO3. what is the percent by mass of silver nitrate in this solution?
A gas sample containing 1.64 mol at 25°C exerts a pressure of 389 torr. Some gas is added to the same container, and the temperature is increased to 50.°C.
The international unit for weighing diamonds and determine the volume of a 0.76 carat diamond if The density of diamond is given=3.51 g/cm3 ?express your answer in units of cm3
A student mixed 75.0 mL of water containing 0.75 mol HCl at 25 degrees C with 75.0 mL of water containing 0.75mo of NaOH at 25 degrees in a foam up calorimeter. The temperature of the resulting solution increased to 35 degrees C.
What properties of soil and its components could be measured to determine whether two soil samples are consistent with having a common origin?
Using a solution containing 0.302 grams of an antibiotic has an osmotic pressure of 8.34 mmHg At 23.6°C, 0.500 L. calculate its molecular mass.
Suppose a can contains a residual amount of gas at a pressure of 755 mm Hg and a temperature of 25 °C. What would the pressure be if the can were heated to 1155 °C?
Quinine (C20H24N2O2) is the most important alkaloid derived from cinchona bark. It is used as an antimalarial drug.
Predict the order for increasing binding energies of the C(1s) electron for the following compounds giving your reasoning.
How much heat (in kJ ) is required to warm 13.0 of ice, initially at -13.0, to steam at 114.0? The heat capacity of ice is 2.09 and that of steam is 2.01
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