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What do you think is the difference between a theory and a hypothesis?
(FW 180.16 g/mol) is burned in a calorimeter whose heat capacity is 29.7 kJ/oK, the temperature increases by 2.635oK. Calculate the heat of combustion of fructose in kJ per mole.
Predict what you would expect to observe when each of the following substances is mixed with NaI/acetone. Would you expect a difference in their relative rates of reaction
Which of the following addition will result in no change in the pH of the solution a. Adding ammonium nitrate to an ammonia solution.
a solution of 100.0ml of .200 m koh is mixed with a solution of 200.00ml of .150m niso4.a write the balanced chemical
Describe the preparation of 125 mL of 5.30 M HNO3 from a concentrated solution that has a specific gravity 1.42 and is 70% (w/w) HNO3.
Calculate the pH of a buffer solution made by mixing 40.4 g of potassium formate into 1 L of a 0.09 M solution of formic acid. Give the pH to two decimal places.
An air stream's humidity is increased by combining it with a stream of water as shown below (hr stands for relative humidity). The water evaporates and increases the moisture content of the air stream. Determine the mass flow rate of stream B
The reactions represented below are all spoontaneous as written. For each, write the anode and cathode half - reactions and indicate the signs of the electrodes.
an aluminum plate has a length of 0.12 m and a width of 0.10 m at 25 degc. the plate is uniformly heated to 225 degc.
A mixture of 0.160 moles of C is reacted with 0.117 moles of O2 in a sealed 10.0L vessel at 500.K, producing a mixture of CO and CO2. The total pressure is 0.640 atm. What is the partial pressure of CO. 3C + 2O2---> 2CO +CO2
What is the resulting pH 2)More strong base is added until the equivalence point is reached. What is the pH of this solution at the equivalence point if the total volume is 64.0mL
if the total amount of energy emitted by a carbon sample is 1.98x105 j determine the number of carbon atoms present in
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