Calculate the amount of heat required to heat ethanol
Calculate the amount of heat required to heat a 43 sample of ethanol from 14.0 to 19.0. Specific heat capacity of ethanol is 2.42 .
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A gas in a sealed container has a pressure of 125 kPa at a tempurature of 30.0 degrees celcius. If the pressure in the container is increased to 201 k Pa, what is the new tempurature?
Its melting point is 962°C, and its heat of fusion is 11.3 kJ/mol. What quantity of heat, in joules, is required to change 7.50 g of silver from solid at 25°C to liquid at 962°C?
Exactly 10.0 mL of an unknown sample of Ni2+ gave a current of 2.36 ?A. After 0.500 mL solution of 0.0287 M Ni2+ was added to the 10.0 mL sample, the current increased to 3.79 ?A. What is the concentration of Ni2+ in the sample?
A ball of aluminum [c = 0.897 J/g°C] has a mass of 100 grams and is initially at a temperature of 150°C. This ball is quickly inserted into an insulated cup containing 120 ml of water at a temperature of 15.0°C.
The pistonpushed into the cylinder reducing the volume inside the cylinder to 145 ml. At the same time the cylinder is heated to 75 degrees celsius. What is the resulting pressure in the system?
When steam condenses to liquid water, 2.26kJ of heat is released per gram. The heat from 168g of steam is used to heat a room containing 6.44 X 10power of 4 of air. The specific heat of air at normal pressure is 1.015J/g.C. What is the change in a
In the reaction PCl3 + Cl2 ---> PCl5, what will happen to the rate (increase, decrease, no effect) when a) the concentration of PCl3 was increased, b) if the concentration of Cl2 were decreased, c) if the concentration of PCl5 were decreased, a
An aqueous solution that contains 285ppm of potassium nitrate (KNO3) is being used to feed plants in a garden. What volume of this solution is needed to prepare 1.7 L of a solution that is 97 ppm in KNO3?
a 43 L tank contains a gas under a pressure of 369 atm. What volume would the gas occupy at the same temperature at 710 torr of pressure?
A volume of water was delivered using a buret and experimentally determined to have a mass of 2.00-g. What was the final volume of water on the buret if the inital was 0.44-mL? [assume the density of water is 1.00g/mL]
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A computer access password consists of from four to ten letters chosen from the 22 in the Hebrew alphabet with repetitions not allowed.
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All this data is public record information already, but still quite inconvenient to access. What are the side effects of this action?
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