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50g of aluminum is placed in an oven. The hot aluminum is added to 200g of water. The starting temperature of the water was 2oC. After adding the aluminum, the final temperature was 55oC. Assuming that the heat lost by the metal = heat gained by the water, what was the temperature of the oven? The specific heat of aluminum is 0.9 J/g/oC, and the specific heat of water is 4.18 J/g/oC.
calculate the molality of each of the following solutions: a)14.3g of sucrose in 676g ofwater b)7.20 moles of ethylene glycol in 3546g of water.
kilimanjaro in tanzania is the tallest peak in africa 19340 ft.. on a particular day the barometric pressure at the top
What does the initial rate of the reaction show in terms of the entire reaction. I am doing an experiment with hydrochloric acid and calcium carbonate
A 39.0 mL solution of 0.500 M Cd(NO3)2 is prepared. What mass of NaOH is needed to precipitate the Cd2+ ions from this solution?
Which of the following substances has a standard heat of formation of zero. A. pb @ 1000 degrees C B. C3H8 @ 25.0 C and 1 ATM pressure C.
A metal object with a mass of 19 g is heated to 96 degree celcious, then transferred to a calorimeter containing 75 g of water at 18 degree celcious
A buffer was prepared by mixing a solution that is 0.285 M in HA and 0.385 in A-. The pH of this buffer was 4.435. Then to 405mL of this buffer solution was added to 21.5mL of 2.0 M HCL. Explain what is the pH of this new solution
a cargo plane traveling towards a positive x-direction at an elevation of 60 m drops a package to a certain village. at
Which atom is oxidized - Which atom is reduced?
When 2.848 grams of sulfur is dissolved in 50.0 ml of CS2 (density 1.263 g/ml), the solution boils at 46.54 C. what is the formula for sulfur
Camphor is mixed with methanol, then sodium borohydride is added. Then boil, add mixture to ice and stir.
A 2.747 g sample of manganese metal is reacted with excess HCl gas to produce 3.22 L of H2 (g) at 373 K and 0.951atm, as well as a manganese chloride compound (MnClx). Explain what is the formula of the manganese chloride compound produced in the ..
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