What is the specific heat of the liquid
A flask contains 22.5 g of an unknown liquid, initially at 14.0oC. After 2.34 kJ of heat are added to the liquid, its final temperature is 56.3oC. What is the specific heat of the liquid?
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A 34.9-g sample of an unknown metal, initially at 232.8oC, is immersed in a 17.0-g sample of water (specific heat = 4.184 J g-1 oC-1), initially at 15.4oC, in an insulated cup. Once equilibrium is reached, the final temperature of the water-metal
The temperature rose by 0.910K. In a separate experiment in the same calorimeter, the combustion of 0.825g of benzoic acid, for which the internal energy of combustion is -3251kJ mol-1, gave a temperature rise of 1.940K. Calculate the internal ene
An 8-kg plunger is released from rest in the position shown and is stopped by two nested springs; the constant of the outer spring is k1 = 4 kN/m and the constant of the inner spring is k2 = 12 kN/m.
How many moles of sodium hypobromite ({rm NaBrO}) should be added to 1.00 {rm L} of 5.0×10-2 M hypobromous acid ({rm HBrO}) to form a buffer solution of pH = 9.14?
The snowmobile is traveling at speed v0 when it leaves the embankment at A. Determine the time of flight from A to B and the range R of the trajectory.
An unknown compound has the empirical formula CH2. A 0.050-mol sample of this compound weighs 4.20 g. What is the molecular formula of this compound?
Oxygen gas is generated by the thermal decomposition of potassium perchlorate. the oxygen gas is captured by water displacement at a water temperature of 20 degrees C resulting in a water vapor pressure of 0.0231 atm. if the pressure inside of the
What volume of ammonia can be produced from 2.0L of nitrogen gas and 3.0L of hydrogen gas? Assume that all gases are measured at the same temperature and pressure.
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
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