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A vinegar sample contained 4.60% acetic acid . How many mL of 0.450/v sodium hydroxide would be required to titrate 25.00 mL of hte vinegar sample? Assume the density of the sample to be 1.00 g /mL
Predict how the inert pair effect would manifest itself beyond group 15 and compare your predictions with the chemical properties of the elements involved.
A copper cathode with an initial mass of 10.77 g is placed in a solution of CuSO4. After current has passed through the electrode for 15.0 minutes the cathode has a mass of 12.89 grams. Determine the amount charge (in Coulombs) that has passed thr..
already have a solution that contains 10 mmol of acetic acid. how many millimoles of acetate will you need to add to this solution? the pKa of acetic acid is 4.74
Calculate the concentration of all species in a 0.100 M phosphorous acid solution. These species include {H3O}, {H2PO3} and {HPO3^2-}. For phosphorous acid, ka1=3.0*10^-2 and Ka2=1.7*10^-7
A 1L steel tank has a safety valve that opens when the internal pressure exceeds 850 torr. The tank is filled with He at 23 oC and 0.991 atm.
rom your initial observations, you suspect that the two beakers contain the same compound. Describe, in general terms, some experiments in a laboratory that you could do to help prove or disprove that the beakers contain the same compound.
How many outer atoms and lone pairs are present in a molecule with a see-saw geometry
The solubility of N2 in blood at 37°C and at a partial pressure of 0.80 atm is 5.6 10-4 mol/L. A deep-sea diver breathes compressed air with the partial pressure of N2 equal to 3.6 atm. Assume that the total volume of blood in the body is 5.0 L.
Cyclopropane contains 85.7%C and 14.3% H by mass. At 50C and .984 atm pressure, 1.56g cyclopropane has a volume of 1L. What is the molecular formula?
NaOH to achieve a phenolphthalein end point. Express the acidity of the wine in terms of grams of tartaric acid (H2C4H4O6, fw 150.09) per 100 mL of wine.
A solution is 2.25% by weight NaHCO3. How many grams of NaHCO3 are in 250.0 g of solution
For supercritical carbon dioxide, predict the effect that the following changes will have on the effect that the following changes will have on the elution time in an SFC experiment.
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