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The density of an 40.0% w/w ethanol (C2H5OH) solution is 0.935 g/mL. What mass of ethanol does 225.0 mL of this solution contain
How many kJ of heat are needed to completely vaporize 1.30 moles of The heat of vaporization for water at the boiling point is 40.6 kJ/mole.
Draw the possible chair forms of cis and trans 1-isopropyl-3-methylcyclohexane. Are the two forms identical, enantiomeric, or diastereomeric?
What are the potential effects of exposure to nitric acid? Consider all different modes of exposure listed on the MSDS.
A water at pH = 6.35 has HCO3- concentration of 2.2 mM. What is the alkalinity? Clearly specify your units
Imagine that you have a 5.00L gas tank and a 4.50L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
Explain why in an aqueous electrochemical cell, nitrate ions never react at the anode, but nitrite ions do
What is the minimium wavelength of light necessary to ionize an atom of sodium? what is the minimum wavelength of light necessary to ionize a mole of sodium atoms?
A normal value for blood cholesterol is 200mg/dl of blood. If a normal adult has a total blood volume of 5 L, how much total cholesterol is present.
What is the molar composition of the dense gas and it's chemical formula? What is the element name and identity and atomic mass of the grey substance
Calculate the boiling point of this water-ethylene glycol mixture. (The density of ethylene glycol is 1.11 g/mL.)
What is the molarity and osmolarity of a 1 liter solution with .2 moles of calcium chloride. How many molecules of chloride are dissolved in solution
With respect to the Cooper pair model, explain why increasing temperature reduces the effectiveness of low-temperature superconductors.
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