Explain primary standard for acid-base titrations

Reference no: EM13181514

1). A 22.536 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia. The sample is diluted with 72.516 g of water. A 11.800 g aliquot of this solution is then titrated with 0.1054 M HCl. It required 32.70 mL of the HCl solution to reach the methyl red endpoint. Calculate the weight percent NH3 in the aqueous waste.

2).Constant-boiling HCl can be used as a primary standard for acid-base titrations. A 50.00 mL sample of constant-boiling HCl with a concentration of 0.1193 M was collected and titrated to an end point with 34.89 mL of Ba(OH)2 solution. What is the molarity of the Ba(OH)2 solution?

3).How many grams of primary standard grade sodium carbonate are necessary to prepare 2.00 L of a 0.0630 M Na2CO3 solution?

4). A standardized solution that is 0.0150 M in Na is necessary for a flame photometric determination of the element. How many grams of primary-standard-grade sodium carbonate are necessary to prepare 800.0 mL of this solution?

Reference no: EM13181514

Questions Cloud

Find the maximum value of the quadratic function : Find the maximum value of the quadratic function. Make sure to show your work.

State gibbs free energy and equilibrium the reaction : Gibbs Free Energy and Equilibrium The reaction SO2(g)+2H2S(g)?3S(s)+2H2O(g) is the basis of a suggested method for removal of SO2 from power-plant stack gases

Find the rate in feet per minute at which he should rappel : Hunter is at the top of a cliff getting ready to rappel. If Hunter is 1,418 feet above the ground, and he wants to complete his rappel down the cliff in m minutes, which expression can be used to find the rate in feet per minute at which he should..

Construct a budget neutral subsidy : Consider a market where demand is: P = 6 - Q and supply is S: P = Q. 1. Equilibrium quantity Qe is Total surplus TS is (do not forget to account for the subsidy expenditure SE) Construct a budget neutral subsidy in the above market.

Explain primary standard for acid-base titrations : Constant-boiling HCl can be used as a primary standard for acid-base titrations. A 50.00 mL sample of constant-boiling HCl with a concentration of 0.1193 M was collected and titrated to an end point with 34.89 mL of Ba(OH)2 solution. What is the m..

What is the height of the tree : angle of elevation to the top of the tree to be 53°. What is the height of the tree? Round your answer to the nearest foot.

Express the hydrostatic force against one side : A trapezoid with bases 4 m and 6 m is partially submerged vertically in water so that the top is 1 m above the surface and the bottom is 1 m below the surface. Express the hydrostatic force against one side of the plate as an integral and evaluate..

Civil compliant with a criminal charge : How do you practically bridge a civil compliant with a criminal charge? Which case comes first? Can info from one case be shared with the other?

State what was the original concentration of the v3 solution : This solution was back-titrated with a 0.0440 M Ga3 solution until all the EDTA reacted, requiring 14.0 mL of the Ga3 solution. What was the original concentration of the V3 solution?

User Account

All Pages