What is the heat change in calories for the peanut
a 2.00 g peanut is burned in a bomb calorimeter containing 1400 g of water. the temperature of the water increases from 25 C to 30.25 C. What is the heat change, in Calories, for this peanut?
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A gas mixture with a total pressure of 765 g contains each of the following gases at the indicated partial pressures: CO2, 116 mmHg ;A , 211 mmHg ; and O2 , 184 mmHg . The mixture also contains helium gas. What is the partial pressure of the heliu
The normal freezing point of mercury is -38.9 C and its molar enthalpy of fusion = 2.29/kj/mol. What is the entropy change of the system when 50g of mercury freezes at the normal freezing point?
65.50 mL of 0.161 M HF is titrated with 0.1200 M NaOH. What is the pH after 65.50 mL of base have been added? (Ka for HF is 6.8 x 10-4)
A bicycle tire is filled with air to a pressure of 100 psi at a temperature of 100 degrees C. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58 degrees C. the volume of the tire is increased by 4%. what is the new
At 710. mm Hg, a sample of nitrogen gas occupies 625 mL. What volume does the gas occupy if the temperature remains constant and the pressure increases to 760. mm Hg?\
65.50 mL of 0.161 M HF is titrated with 0.1200 M NaOH. What is the pH at the equivalence point? (Ka for HF is 6.8 x 10-4)
Write a balanced equation for the reaction and determine how much oxygen in grams to the nearest 0.1 grams is formed by the complete reaction of 148.4 g of NA2o2.
what are the partial pressure in atm of each components of this mixture if it is held in a 10.0 L vessel at 14 degree Celsius.
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