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A student is given an antacid tablet that weighed 5.6832g. The tablet was crushed and 4.3628 g of the antacid was added to 200mL of simulated "stomach acid". This was allowed to react and then filtered.
It was found that 25mL of this partially neutralized stomach acid required 8.5mL of a NaOH solution to titrate it to a methyl red endpoint.
If it took 21.5mL of this NaOH solution to neutralize 25mL of this NaOH solution to neutralize 25mL of the original acid:
A) How much of the "stomach acid" had been neutralized in the 25mL sample which was titrated?
B) How much stomach acid was neutralized by the 4.3628 g tablet?
C) How much stomach acid would have neutralized by the original 5.6831 tablet?
.20g of methyl alcohol, CH3OH, are dissolved in 16.8g of water, H2O. What is the mole fraction of the solute.
Consider a distillation column that is fed 1000 kg/hr of an equimolar mixture of benzene and cyclohexane. Theof the benzene distillate stream is to contain 90 % with a benzene mole fraction of 0.95.
A sealed-end water manometer attached to an air duct reads 1598 cm. An open-end water manometer attached to the same duct reads 556.2 cm.
A weak acid (HA) has a pKa of 4.904. If a solution of this acid has a pH of 4.356, what percentage of the acid is NOT ionized
Complete combustion of a 0.360g sample of glucose produced 0.528g carbon dioxide and 0.216g of water. Find the empirical formula for glucose.
What is the molecular formula of a compound with a percentage composition 26.7% P, 12.1% N, and 61.2% Cl and a molecular mass of 695u.
Proceeds at a certain temperature until the partial pressures of H2O, H2, and O2 reach 0.0800 atm, 0.00500 atm, and 0.00200 atm respectively.
how does the rate of formation of O2 compare to (a) the rate of formation of H2O and (b) the rate of disappearance of H2O2?
Consider All the by products that will be formed by E1/E2 processes for the reaction of 2-methyl, Provide structures for all possible by products b) which alkene would be favored and why?
Assume that the specific heat of the solution is the same as that of pure water. Calculate delta(H) (in kJ/mol NH4NO3) for the solution proces.
Compute the initial pressure of the gas in the cylinder. b. Compute how much heat must be added to the gas in the cylinder for the spring to compress by 2cm
Calculate the solubility of Ce(IO3)3 (pKsp=10.86) in: a) distilled H20 b) 0.300 M Ce(NO3)3 solutiom c) 0.200 M KIO3 solution
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