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The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abbreviation (w/v) is also common. How many grams of sucrose are needed to make 735 mL of a 30.0% (w/v) sucrose solution?
If you find that it takes 0.1050 moles of sodium hydroxide to reach the equivalence point how many moles of acetic acid were present at the beginning of the titration
The volumes(45.01,45.05,45.07, and 45.33)ml were used to titrate a 50ml aliquot of a sample. would you reject any values at a 90% confidence interval. how about a 95% confidence interval
Compute the number of mL of 2.00M H2SO4 required neutralizing 125.5mL of 1.2M KOH
Heat flows into an ideal gas at a constant volume. The pressure increases from 1.5 atm to 5.5 atm. Next the gas is compressed at constant pressure from 5.0 L to 2.5 L and goes back to its original temperature.
When adjusted for any changes in delta h and delta S with temperature, the standard free energy change delta G at 500K is equal to 9.8x10 4 J/mol.
how many molecules of oxygen gas are needed to react with 4.2 moles of C3H8O?
why do we use water as diluent in preparing control and blank samples? are there any better blank sample than water?
Explain which of the acids below will have the lowest pH in a 0.0010 M solution of the acid. Larger Ka values favor products and smaller Ka values favor reactants.
Have a 2.5L sol'n made up of 0.05M Cl-, 0.0002M Br-, and 0.100M CrO4. you slowly add drops of a 0.5M AgNO3 sol'n. ksp for AgCl=1.8E-10, for AgBr=4E-13, and for Ag2CrO4=1.2E-12
a gas in a sealed container has a pressure of 125 kpa at a tempurature of 30.0 degrees celcius. if the pressure in the
A person suffering from hyponatremia has a sodium ion concentration in the blood of 0.120 M and a total blood volume of 5L. What mass of sodium chloride would need to be added to the blood to bring the sodium ion concentration up to 0.136 M
given pka of dichloroacetic acid and trichloroacetic acid are 1.3 and .6. how many moles of trichloroacetic acid will
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