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Given the following equation: Heat (cal) = g x ?T(°C) x specific heat and that the heat of water is 1.00 cal/g°C.
A metal object with a mass of 32 g is heated to 99°C, and then transferred to a calorimeter containing 75 g of water at 18°C. The water and metal object reach a final temperature of 24°C. What is the specific heat of this metal object?
Calculate delta G for the reaction when the partial pressures are PH2 = 0.25atm, PCO2 = 0.81atm, PH2O = 0.62atm, and PCO = 1.20 atm.
A gas is heated from 269 K to 283 K while its volume is increased from 21.5 L to 37.0 L by moving a large piston within a cylinder. If the original pressure was 1.10 atm, what would be the final pressure?
Calculate the number of kilograms of helium required to inflate a balloon with a volume of 100.000 L at a pression of 250 mmHg and atmospheric temperature of -35 ° C.
For a zero order chemical reaction, the A. half life period is directly proportion to the initial concentration of the reac-tants. B. plot of products concentration with time is a straight line through the origin
Calculate the amount of heat liberated (in kJ) from 351 g of mercury when it cools from 88.0°C to 15.0°C.
The pressure of the vapor of the unknown liquid in this experiment was taken to be equal to the atmospheric pressure in the laboratory. why?
The four molecular p orbitals of the four carbon atoms can be lined up parallel in order to create four new molecular orbitals. The electrons in the new molecular orbitals benefit because they are not confined to just one atom.
Calculate the energy in kJ/mol of a mol of photons in the gamma ray region of the electromagnetic spectrum that has a wavelength of 4.13 pm. Express answer in scientific notation.
Calculate the molality of a solution prepared by dissolving 112. grams of copper (II) sulfate in 450. mL of water at 25 oC
Calculate the values of E for the cell when the following volumes of the Cu titrant have been added: (Activity coefficients may be ignored as they tend to cancel when calculating concentration ratios.
The following properties were measured for an unknown hydrocarbon in a lab with an ambient temperature of 28 degrees Celsius and a barometric pressure of 28.9 inches of mercury (1 inch Hg=25.4 torr)
A 100 mL buffer solution initially has 1.00 M HClO (Ka = 3.0 × 10-8) and 0.75 M NaClO. What is the new pH when this 100 mL of 0.10 M NaOH is added to the initial buffer solution?
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