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A typical cup of tea is made by starting with six fluid ounces of cold water (177 mL). How much heat (in joules) is required to heat this amount of water from 17.7 oC to 87.8 oC, a good temperature for brewing geen tea?
How many moles of MgI2 are in 1.3L of a 0.2M solution? How many moles of Mg2+ are in the solution? How many moles of I-?
Draw a diagram depicting the electron transitions that occurred to produce these emissions. Explain why your results (2) indicate that the electron behavior of atoms of elements with more than one electron is not well described by equation 1, if Bo..
What is the concentration of a solution of lithium carbonate containing 0.01 mol in 750 mL of solution? Give your answer to two significant figures and include the units as mol L-1 ie 0.36 mol L-1
how many liters of water vapor can be produced if 13.3 liters of methane gas ch4 are combusted if all measurements are
in a calorimeter 10.0 g of ice melts at 0 oc. the enthalpy of fusion of the ice is 334 jg. how much heat was
question a 158.5 mg sample of pure cu metal is dissolved in a small amount of concentrated nitric acid giving cu2 ions
You have 32.4 g of O2 gas in a container with twice the volume as one with CO2 gas. The pressure and temperature of both containers are the same. Calculate the mass of carbon dioxide gas you have in the container.
The Ksp of CaSO4 is 4.93× 10-5. Calculate the solubility (in g/L) of CaSO4(s) in 0.500 M Na2SO4(aq) at 25 °C
The equilibrium of Fischer esterification reactions in general is slightly towards product formation. The equilibrium can be made more favorable for product formation by all of the following except
That Avogadro's number is 6.022 x 10^23; 1L = 103 cm3. If the density of air is 1.2 kg/m3, what is the weight of one mole of air in scientific notation and appropriate units
The density of air at ordinary atmospheric pressure and 25 degrees C is 1.19 g/L. What is the mass, in kilograms, of the air in a room that measures 10.0 X 13.5 X 10ft
a solution is prepared by adding 1.91 mg of an unknown protein to enough water to make a 12.7 ml solution. the osmotic
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