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Two ice cubes at 0.0 oC are dropped in an insulated container containing 93.8 g of water at 27.0°C. After all the ice is melted, the final temperature of the system is 17.0 °C. What is the mass of the ice cubes dropped? Assume that the container has a heat capacity of 12.00 J/ oC and ΔHfus of ice is 333.0 J/g. The specific heat of water is 4.18 J/g°C.
How much ammonia would be spent to remove the NOx generated, expressed in kg of of NH3 per 100 kg of fuel?
calculate keq for 1 moles of electrons in each half-reaction and a standard potential of 0.38 v. a half-cell that
Explain what pressure of carbon dioxide is necessary to keep the carbon dioxide concentration in a bottle of club soda at 0.35 M at 25 degrees Celsius
The concentration of a biomolecule inside a rod-shaped prokaryotic cell is 0.0053 M. Calculate the number of molecules inside the cell, which is 2.9um long and 1.4um in diameter.
question calculate the ph of a buffer solution which contains 0.25 m benzoic acid c6h5co2h and 0.15 m sodium benzoate
When anisole is nitrated with nitric acid/sulfuric acid, what product or product mixture is formed?
Rotenone, antimycin A and cyanide are poisons that inhibit the electron flow through respiratory chain. Rotenone inhibits the electron flow through NADH-Q oxireductase. Antimycin A blocks electron flow between cytochrome b and c1. Cyanide blocks e..
the ionization energies of sodium in kjmol starting withthe first and ending with the eleventh are 495.9 4560 69009540
A quantity of 7.50 g of SO2Cl2 was placed in a 2.00 L flask. At 648 K there is a 0.0345 mole of SO2 present. Compute K(constant) for the reaction. SO2Cl2 (gas) SO2(gas) + Cl2(g)
a solid block of exactly 100.0 cm cubed has a mass of 153.6g. Determine its density.Will the block sink or float on water.
In the reaction 2 C8H18 + 25 O2 ? 16 CO2 + 18 H2O, if the rate of change in the concentration of CO2, ?[CO2]/?t, equals 0.51M/s, what is the value of ?[O2]/?t, the rate of change in the concentration of O2
The third law of thermodynamics relates the entropy (randomness) of matter to its absolute temperature. Which of the following statements are in agreement with the third law of thermodynamics. Check all that apply. Check all that apply. At absolut..
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