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Using a PH meter; the PH of cranberry juice cocktail was found to be 2046 which indicate that the [H3O+]=3047 x10^-3 M. Titration of a 1.0mL sample of the juice to approximately ph required 0.94mL of 0.10M NAOH, indicating a total acid content of 0.094M. Give a plausible explanation for why these two numbers don't agree.
Which description best characterizes the length of a hydrogen bond between water molecules?
A vessel containing saturated vapor steam at 175 C is cooled to 40 C. The total mass of its contents is 450g. Determine the final volume of liquid water in the vessel.
Assuming that the deformation is completely elastic, compute the amount of stress that is put on the nickel 200 alloy. Use values of Yield Stress, Ultimate Tensile Strength, Coefficient of Thermal Expansion and E for nickel 200 alloy.
The solubility-product constants, Ksp, at 25 Celcius for two compounds [iron(II) carbonate, FeCO_3, and cadmium(II) carbonate, CdCO_3 are given by the table
Magnesium has 3 stable isotopes with masses of 23.98504 u, 24.98584 u respectively. If the percent abundance of magnesium-25 is 10.13%, What are the percentages of the other two isotopes
a flask contains 0.180 mol of liquid bromine br2. determine the number of bromine molecules present in the
The angular momentum quantum number for the two highest energy valence electrons in an atom of lead is
How much heat energy is needed to raise the temperature of a 0.50 L of ethanol (d = 0.79 g/mL) from 20.0°C to 50.0°C. Specific heat capacity of ethyl alcohol = 2.45 J/g°C
Nitric acid is usually purchased in a concentrated form that is 70.3% HNO3 by mass and has a density of 1.41 g/mL
What is the maximum amount of Cl2 that can be produced by this reaction. Calculate the amount of excess reactant.
The concentration of Mg2+ in a sample of water is 262 mmol/L At what pH will 99% of the Mg2+ be precipitated as Mg(OH)2? Ksp = 8.9 x 10-12
Add 0.06g of NaOH (MW=40g/mol) to 1 L of acid solution to 0.01 M of carboxylic acid at pH3. What is final pH (no volume change). Calculate pH of 0.2 M acetic acid and 0.05M sodium acetate
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