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Problem- In the molecular structure of maleic acid and fumeric acid there are four H atoms. However, the compounds are diprotic and only dissociate two of the H atoms. In these compounds,
a) Which H atoms can be dissociated in water?
b) Why are the other two H atoms not able to dissociate in water?
Justify your answer.
calculate the percent of a strontium sample left after 100 years. the half-life of strontium-90 is 28.1
Explain what is the height of a column of liquid in a barometer if the density of the liquid is 1.076 g/mL as well as the local atmospheric pressure is 0.87 bar
Observe the following reactants and predict which of the following may form the potential products given the values for the energy of activation, , and enthalpy of the reaction, , in combination with the molecular orientation.
Based upon 3 SnF2 (ag) + 2 K3PO4 (aq)> Sn3(PO4)s (s) + 6 KF (aq), a 10.000 gram sample of toothpaste containing stannous fluoride gives a 0.145 gram precipitate of stannous phosphate. What is the percentage of SnF2 in the toothpaste sample?
An electric power station burns 5.0 ´ 105 tons [1 ton = 2000 lbs] of coal annually. Assuming that the coal is 100% carbon, calculate the volume of CO2 emitted at STP by this power plant annually. [1 lb = 453.6 g].
it takes 48.0 j to raise the temperature of an 10.7 g piece of unknown metal from 13.0 degree celsius to 25.0 degree
A 35 mL sample of 0.150 M KOH is titrated with 0.125 M HClO4 solution. Calculate the pH after 30 mL of acid have been added.
Strawberries contain about 15 wt% solids and 85 wt% water.To make strawberry jam, crushed strawberries and sugar are mixed in a 45:55 mass ratio, and the mixture is heated to evaporate water until the residue contains one-third water by mass.
How man protons,neutrons, and electrons are there in the neutral atom of the isotope of silver named silver-109
Biphenyl is commonly obtained as an impurity during the synthesis of Grignard synthesis of benzoic acid from bromobenzene. How would you detect the presence of biphenyl in your product with a TLC experiment
one hundred grams of water is saturated with nh4clat 50 degrees c. according to table g if the temperature is lowered
Define a particular reactant decomposes with a half-life of 105s when its initial concentration is 0.313 M. The same reactant decomposes with a half-life of 229 s when its initial concentration is 0.144 M.
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