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A 46-kg person drinks 500 g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 17 percent of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake?
Problem- A metal pellet of 100.0 g at 95.0 degrees Celsius is dropped into 218 g of H2O at 23.8 degrees Celsius. if the metal pellet has a specific hear of 0.570 J/(g*degrees C) and the water has a specific heat of 4.184 J/(g*degrees C) what is th..
The equilibrium constant (Kc) for the reaction shown below is 4.17 10-34 at 25°C. 2 HCl(g) reverse reaction arrow H2(g) + Cl2(g) What is the equilibrium constant for the following reaction at the same temperature. H2(g) + Cl2(g) reverse reaction a..
When 2.0 x 10^2 mole of nicotinic acid (a monoprotic acid is dissolved in 350 mL of water, the pH is 3.05. What is the Ka of nicotinic acid
A 64 L sample of dry air is cooled from 137°C to -20.°C while the pressure is maintained at 2.85 atm. What is the final volume
distinguish between an organic molecule that is dextrorotary and one that is levorotary.
Describe the process of obrital hybridization as applied to carbon. You must include information on obritals used and produced
If the instantaneous initial rate of reaction is 0.000145 M/s, calculate the initial instantaneous rate of change of H2 concentration. In addition, explain the answer using words.
When 50.0 mL of water containing 0.50 mol HCl at 22.5°C is mixed with 50.0mL of water containing 0.50 mol NaOH at 22.5°C in a calorimeter, the temperature of the solution increases.
Consider the reaction that occurs when a solution containing hydrochloric acid (HCl) is added to a solution containing the weak base methylamine (CH3NH2).
How much does the molar enthalpy change when 147 g. of water cools from 90.0 C to 17.0 C when 20.0 g. of KCL is added to the water? Is this reaction exothermic or endothermic?
Write a balanced, net ionic equation for the precipitation of CaCl2 and Cs3PO4 in an aqueous solution and include physical state and charges of ions.
Problem- For the following processes, state whether each of the thermodynamic quantities q, w, delta U, and delta H is greater than, equal to, or less than zero for the system described. Explain your answers briefly. Note: adiabatic means no heat ..
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