What is the temperature of putty just after hitting ground
A 7.6730 kg ball of putty, specific heat 0.37690 J K-1 g-1, initially at 297.38 K is dropped from a height 226.46 m. What is the temperature of the putty (in K) just after hitting the ground? (assume no heat loss to the ground)
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If 5.0 of nitrogen at 12 degree Celsius and 1.30 atm pressure reacts with the same volume of hydrogen at the same temperature and pressure, what volume of ammonia is obtained at that temperature and pressure?
The thermochemical equation for the combustion of butane is C4H10(g) + 13/2O2(g) --> 4CO2(g) + 5H2O(l) Delta H = -2877kJ What is the enthalpy change for the following reaction?
A sample of hydrogen gas (H2) is in a 2.98 L container at 708 torr and 19 oC. Express the pressure of hydrogen in atm after the volume has changed to 1.41 L and the temperature is raised to 210 oC.
A protein subunit from an enzyme is part of a research study and needs to be characterized. A total of 0.185 g of this subunit was dissolved in enough water to produce 2.00 rm mL of solution. At 28 ^circ rm C the osmotic pressure produced by the s
Suppose 600. g of P4 reacts with an excess of S8. How many grams of P4S10 can be produced, assuming 80.0% yield based on the limiting reactant?
The freezing point of t-butanol is 25.50°C and Kf is 9.1°C · kg/mol. Usually t-butanol absorbs water on exposure to air. If the freezing point of a 12.2 g sample of t-butanol is 24.59°C, how many grams of water are present in th
At room temperature (20), milk turns sour in about 65 hours. In a refrigerator at 3, milk can be stored three times as long before it sours. What is the activation energy of the reaction tht causes the souring of milk?
Calculate w and ?U when 1 mole of xenon gas assumed ideal under goes adiabatic expansion from 27?c to 127? assuming(heat capacity of constant volmue=12.5)
A mixture of CH4 and H2O is passed over a nickel catalyst at 1000. K. The emerging gas is collected in a 5.00 L flask and is found to contain 8.14 g of CO, 2.58 g of H2, 45.4 g of CH4, and 42.3 g of H2O. Assuming that equilibrium has been reached,
What is the balanced net ionic equation for the reaction below in acidic solution? Enter the coefficient for each substance. Do not leave any answer box blank. Enter 1 if appropriate, or 0 (zero) if the substance does not appear on that side of the e
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What would have been the most appropriate attitude for the Germans to adopt? What would you do next if you were in Mr. Soota's position? Explain why?
You are a purchasing officer in a garment company. Write the Order letter for the purchase.
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Explain why in this reappraisal the new emotion you would have experienced would have been rational by justifying how it was not rooted in any of the 7 Fallacy
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Read the sentences A-H below. Determine the best order and rearrange the sentences to create a well-written paragraph (topic, body, conclusion).