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A box of mass m is released from rest on an inclined plane as shown in the diagram. The initial height is 4.5m relative to the floor. What will be the speed of the block when it is at height 1.5m from the floor?
When 3.50 g of is added to 100.00 g of water in a container open to the atmosphere, the reaction shown below occurs and the temperature of the resulting solution rises from 22.00°C to 47.40°C.
Select the more polar bond in each of the following pairs: a) C-C or C-O; b) P-Cl or P-Br; c) Si-S or Si-Cl; d) F-Cl or F-Br; e) P-O or P-S.
A generic salt AB2 has a molar mass of 207g/mol and a solubility of 8.80 g/L at 25C. What is the Ksp of the salt
Glycolysis is associated to the pentose phosphate pathway through intermediates. Identify as well as show how these intermediates are interconnected in two pathways.
A 43.0 g sample of Fe metal at 90.0°C is placed into 150.0 mL of water at 22.5 °C. After equilibrium is reached the final temperature of the system is 24.5°C. What is the specific heat capacity of the metal
several grams of an unknown liquid were added to a 156 ml dumas bulb at 22 c and 740 torr. the open bulb was then
Determine the mass of copper that would release 438 J of heat while cooling from 284 degrees C to 25 degrees C
A solution of glyceraldehyde, C3H6O3, has a density of 1.15 g/mL, and a mass percentage of 28.1% glyceraldhyde at 25 deg C. (molar mass = 90.078g/mol)
Calculate the percent nitrogen by mass in glycine. [Sections 3.3 and 3.5]
Calculate the pH at the equivalence point in titrating 0.010 M solutions of each of the following with 0.081 M NaOH. (a) hydrochloric acid (HCl) pH = _?_ It's not 12.55
The utilization of the British thermal unit (Btu) is common in much engineering work. A Btu is the amount of heat needed to raise the temperature of 1 lb of water by 1 degree Farenheit. Compute the number of Joules in a Btu.
The following data were obtained on the rate of lactose decomposition as a function of acid and lactose concentration. Using this information, determine the rate law expression and the value of rate constant for the acid-based hydrolysis of lactos..
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