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About how much phenacetin will remain dissolved when the water calculated (94ml) is cooled to room temperature
A sample of 0.255 mole of gas has a volume of 748 mL at 28°C. Calculate the pressure of this gas. (R= 0.0821 L · K)
Reaction A has positve delta H and positve delta S, reaction B has positive delta H and negative delta S, reaction C has negative delta H and positiveS, reaction D has has negative delta H and negative delta S
Determine what is the total mass of glucose in 5.10L of blood If a person has a glucos level of 108 mg.100mL, ? express your answer in grams?
silica gel columns having smaller particle size procedure more effective chromatographic separations
find the vapor pressure of a water solution in which the mole fraction HgCI2 (a nonvolatile solute) is 0.163 at 25.
The heat of reaction for the combustion of cyclohexane, C6H12, is 936.8 kcal/mol. What is the heat of combustion for cyclohexane in kcal/gram?
A 29.0-g sample of water at 260. K is mixed with 48.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
What volume (mL) of hydrogen gas, saturated with water vapor, will be obtained from a 0.1138 gram sample of alloy which is 73.2% aluminum? (Pbar= 754.3 torr, Temp= 21.2 Celsius)
The mass of an electron is 9.11 times 10^{-31}kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31times 10^{-10} how fast is the electron moving relative to the speed of light? The speed of light is 3.0 times10^8 m/s.
Based on position in the periodic table and electron configuration, arrange these elements in order of decreasing Ei1. Rank the elements from highest to lowest ionization energy
Assume a specific heat of 4.18 J/(g·°C) for the solution, an initial temperature of 25.0°C, and no heat transfer between the cold pack and the environment
Define the possibility of stereoisomers exists, However, the addition of bromine to an equimolar mixture of cis- and trans-2-butene generates only three stereoisomers. Explain.
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