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The value of which concentration unit for a solution changes with temperature a. molarity b. molality c. mole fraction b. mass percentage
Liquid-in-glass thermometer are of two types:mercury in glass and alcohol plus red dye in glass. the dependence of volume on temperature of mercury and alcohol.
For the calcium ion create a procedure for preparing a 0.100 M solution from the solid, Anyhydrous Calcium Chloride, CaCl2. Make sure to include amounts and equipment you will use for the preparation.
Draw the structure of the major organic product formed in the reaction of 1-methylcyclohexene with ozone followed by dimethyl sulfide
the R isomer of limonene has an optical rotation, alpha,of +123 degrees the S isomer has an optical rotation, alpha, of -123 degrees. IF the observed rotation of a mixture of the R and S isomer resulted in a alpha of 109 degrees
An NRM spectrum results from photons irradiation in which the nuclear spin aligment is flipped
How many grams of a stock solution that is 85.5 percent H2SO4 by mass would be needed to make 150 grams of a 45.0 percent by mass solution?
A solution is prepared by dissolving 22.0 g of NaOH in 118.0 g of water. the NaOH solution has a density of 1.15 g/mL. a)what is the mass percent (m/m) of the NaOH solution b)what is the total volume(mL) of the solution c)what is the molarity (M) ..
A sample of ideal gas at room temperature occupies a volume of 34.0 L at a pressure of 722 torr. If the pressure changes to 3610 torr, with no change in the temperature or moles of gas, what is the new volume, V2
Activity of a cation (M+) is 0.0487 mol/liter. Calculate the concentration of the cation if y=0.84. Show work.
(1.) Determine the pH of this buffer. (2.) Some solid sodium hydroxide is added to this buffer system and the new pH is measured as 4.74. How many grams of NaOH were added? (Assume the total volume remains unchanged)
how many grams of potassium sulfate are required to make 385 ml of 2.5M solution
What would the bonding geometry at each nitrogen atom be for the following: NOCl, NO2Cl, and NO3Cl the options are trigonal planar, linear, tetrahedral, and bent
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