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IF a student is given an antacid tablet that weighed 5.6832g and the tablet were crushed and 4.3628 g of the antacid was added to 200 mL of a immolated "stomach acid." This was allowed to react as well as then filtered. It was found that 25.oo ml of this partially neutralized stomach acid required 8.50 ml of a NaOH solution to titrate it to a methyl red endpoint. If it took 21.5mL of this naOH solution to neutralize 35.00mL of the original stomach acid
a. Explain how Much of the stomach acid had been neutralized in the 25.00 ml sample which was titrated?
b. Explain how much stomach acid was neutralized by the 4.3629 g tablet?
c. Define how much stomach acid would have been neutralized by the original 5.6832 g tablet?
At 25C, the molar solubility of lead sulfate is 1.4*10^-4 molarity. The solubility in g/L is 4.24*10^-2. 23.6 L of water are required to dissolve 1g of lead sulfate. What is the solubility of lead sulfate in parts per million
a 75 ml solution of 0.030 m caoh2 is titrated with 0.035 m hcl. calculate the ph of the mixture after 60 ml of hcl have
A buffer, consisting of H2PO4- and HPO42-, helps control the pH of physiological fluids. Many carbonated soft drinks also use this buffer system.
The Ksp of AgBr is 5.4 ´ 10-13 at 25 °C. Calculate the molar solubility of AgBr in 0.015 M NaBr(aq) at 25 °C.
In hydrogen bonding does the Hydrogen have to be connected to an O, N or F in its own molecule and be bonded to a O, F or N with another hydrogen
a 1.00 L solution contains 4*10^-4 M Cu(NO3)2 and 1.6*10^-3 M ethyleneddiamine. the Kf for Cu(en)2^2+ is 1*10^20, what is the concentration of Cu+2 in the solution
what is the original concentration of acetic acid in the vinegar? Molecular chemical equation: CH3CO2H(aq) + NaOH(aq) -> CH3CO2Na(aq) + H2O(l)
A solution of potassium chromate is prepared at pH 7.72. Calculate the fraction of the total chromate in this solution that is present as the chromate ion CrO42-.
An iron ore sample is a mixture of Fe2O3 and several impurities. A 752. g sample of the impure iron ore is heated with excess carbon. Only the Fe2O3 present in the ore reacts with the carbon producing 341. g of carbon monoxide by the following rea..
When 1.00 mol H2S was put into a 10.0 L vessel and heated to 1132 degrees Celcius , it gave an equilibrium mixture containing 0.0285 mol H2. what is the value of Kc at this temperature
The vapor pressure of a beaker of dilute aqueous solution of sucrose at 25 degree C is 3.111 kPa. Find the activity of water in this sucrose solution, given that the vapor pressure of pure water at 25 degree C is 3.167 kPa
What is the electron geometry. 3. What is the molecular geometry. 4. What are the hybridized orbitals. 5. Is the molecule polar or non-polar
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