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The 9.0 g ice cube at a temperature of 0 degrees Celsius is added to a cup of coffee whose temperature is 90.0 degrees Celsius as well as contains 120.0 g of liquid. The enthalpy of fusion for is 6.0 kJ mol-1
An electron in the hydrogen atom makes a transition from an energy state of principle quantum number n to the n=1 state. If the photon emitted has a wavelength of 95nm, what is the value of n?
How many grams of are CaH2 needed to generate 147L of H2 gas if the pressure of H2 is 827 torr at 20 C?
how many mili litres of alcohol are in a 0.950 rm l bottle of wine if wine is 16 by volume alcohol.?considering the
A 25.0 ml solution of .0600 M EDTA was added to a 57.0 ml sample containing an unknown concentration of V3+. All V3+ present formed a complex, leaving excess EDTA in solution.
The liquid contains 42.5 mole% benzene and the vapor contains 73.5 mole% benzene. -Calculate the heating requirement for this process in kW. -Using Raoult's law determine whether or not the given benzene analyses are consistent with each other
The HCl concentration in a hyperacidic stomach is 0.03 M. The volume of liquid in the stomach is 300 mL. How many tablets of the antacid which you analyzed would have to be taken to bring the concentration of HCl in the stomach to a more normal le..
How many grams of water are formed when 5.00 g of butanol combust with excess oxygen according to the reaction shown below?
Calculate the volume of 0.07216 M AgNO3 needed to react exactly with 0.3572 g of pure Na2Co3 to
A sample of clay was obtained from a point below the groundwater table. A moisture content test on this sample produced the following data
The haber process is a method in which ammonia can be produced from nitrogen gas and hydrogen gas. If nitrogen gas at 200 atm and hydrogen gas at 500 atm are combined at 500?C in a 50.0L vessel: determine the amount of ammonia that would be produc..
Consider the following process. which of the following correctly applies? chose answere from the following answers. (a) termination step (b) polar reaction (c) unsymmetrical bond formation (d) produces a radical
a balloon is partly inflated with 480 liters of helium at sea level where the atmospheric pressure is 996 mbar.the
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