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Using the same sample of gas ( P1= 405 torr, T1 = 1 degree celsius), we wish to change the pressure to 4050 torr with no accompanying change in volume or amount of gas. What temperature T2, in Celsius, is needed to reach this pressure? Express the temperature numerically in degrees Celsius.
Predict the organic product of the following reaction. Include hydrogen atoms in your structure.
A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 6.90kg of water at 34.7 degrees C . During the reaction 57.1kJ of heat flows out of the bath and into the flask.
What is the minimum amount of energy from the sun required to produce 4 g of glucose in this way? ?Hf of glucose is -1260 kJ/mol.
The solubility of caffeine in water is 2.2mg/mL at 25 degrees celsius and 670 mg/mL at 100 degrees celsius. How many mL of boiling water would it take to dissolve 23g of caffeine
A 20 mg sample of zinc is heated at 10 K min-1, and the peak on the DSC trace has an area of 0.371 W K. Calculate the latent heat of melting of zinc (in kJ mol-1)?
What is the pH of a buffer prepared by adding 0.45 mol of the waek acid HA to 0.608 mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66e-7
The reaction that occurs here is the reaction of iodide ions with peroxydisulfate ions to produce iodine molecules and sulfate ions. Write the balanced net ionic equation for this reaction.
Consider the reaction of sulfur dioxide and water, which is represented by the following equation: 2SO2(g) + 2H2O(g) ® 2H2S(g) + 3O2(g) How many moles of electrons are transferred according to the equation that is written
Consider the titration of 80.0ml of 0.100M Ba(OH02 by 0.400 M HCl. Calculate pH of the resulting solution after 20.0mL of HCl is added.
A gas mixture with a total pressure of 770 contains each of the following gases at the indicated partial pressures: , 265 ; , 134 ; and , 159 . The mixture also contains helium gas. What is the partial pressure of the helium gas?
ch3br aq oh- aq -gt ch3oh aq br- aq . the reaction is first order in each reactant. a write the rate law. b how does
Assuming there is no overpotential, Predict the products formed at the anode and cathode during the electrolysis of ZnCl2 in water
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