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In molar chemistry, the number of moles of solute present in 1 kg of a solvent is called its?
How much heat is needed to convert 923 g of ice at -30°C to steam at 119°C. (The specific heats of ice, steam, and liquid are 2.03 J/g · °C, 1.99 J/g · °C, and 4.18 J/g·°C, respectively. The heat of fusion is 6.02 kJ/mol and heat of vaporization i..
The only two accessible conformations of a protein differ by 2kJ/mol. What percentage of protein molecules will be in the higher energy state at 350K? at 270K
What minimum frequency of light is required to ionize sodium. The energy required to ionize sodium is 496 kJ/mol. Answer needs to be in s-1.
How many times g of acceleration are present in an ultracentrifuge with a rotation frequency of 45000 rpm and a distance of 6 cm from the center of rotation. Note: the quantity omega is the angular frequency
What molarity of aqueous aluminum sulfate solution can be expected to show the same conductivity as 0.015 M Na2SO4 at 18,000 units?
A solution is prepared by mixing 5.00 g of compound Z (molar mass 15.00 g/mol) in 100.0 ml of water. The density of the solution is 1.09 g/ml. Calculate the molarity of the solution.
Write a balanced equation for the proton-transfer reaction involved and label the stronger acid, stronger base, weaker acid, weaker base.
If a single pill contains 0.150 grams of KCN How much HCl in grams would be necessary to consume all of the KCN
Using the same assumptions and approximations you used in lab, determine the molar enthalpy change (in kJ/mol) for the reaction below, assuming that CH3CO2H dissociates completely in water.
A 52.2 g block of an unknown metal at 85.5oC was dropped into an insulated vessel containing approximately 37 g of ice and 27 g of water at 0oC. After the system had reached equilibrium
How many moles of methanol are present in a 150.0 gram sample of methanol,CH3OH
explain why it is appropriate to group a polyatomic ion in parentheses in a chemical formula, if more than one of that ion is present in the formula.
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