The reaction of sulfuric acid with sodium hydroxide is described by the equation: [% H_2SO_4+2NaOH\ →\ Na_2SO_4+2H_2O %] Suppose 50 mL of [% NaOH %] with an unknown concentration is placed in a flask, then a few drops of bromthymol blue were added. A solution of 0.20 M [% H_2SO_4 %] is dripped into the [% NaOH %] solution. After exactly 25.0 mL of [% H_2SO_4 %] is added, the color changes from blue to yellow. The Titrant in this experiment is_________

write the balanced chemical equation for the reaction between phosphoric acid and iron(II) hydroxide.  Calculate the mass of precipitate that can be formed when starting with 15.79 mL of 0.091 M phosphoric acid.

How do we solve this with dimensional analysis?

Calculate the % by mass Sr(OH)2 , M, N, m, mf H2 O of a Sr(OH)2 solution that contains 107.2 g Sr(OH)2 dissolved in enough H2O to make 3.000 L of solution. The density of the solution is 1.14 g/mL.

How many mL of 0.022 M HCl would it take to completely neutralize 14.11 mL of 1.16 M Ca(OH)2 according to the following reaction equation. 2HCl + Ca(OH)2 --> 2H2O + CaCl2

185 mL of 0.355 M NaCl is added to a 0.500 L volumetric flask and the flask is filled with water. Calculate the [Na⁺] concentration in the diluted solution.

III O Chemical Reactions Solving for a reactant in solution 1/5 Bis Sodium hydrogen carbonate (NaHCO3), also known as sodium bicarbonate or "baking soda", can be used to relieve acid indigestion. Acid indigestion is the burning sensation you get in your stomach when it contains too much hydrochloric acid (HCI), which the stomach secretes to help digest food. Drinking a glass of water containing dissolved NaHCO3 neutralizes excess HCI through this reaction: HCl(aq) + NaHCO3(aq) NaCl(aq) + H2O(l) + CO₂(9) The CO2 gas produced is what makes you burp after drinking the solution. Suppose the fluid in the stomach of a woman suffering from indigestion can be considered to be 150. mL of a 0.024 M HCl solution. What mass of NaHCO3 would she need to ingest to neutralize this much HCI? Round your answer to 2 significant digits. Ов X G

You are asked to double check the calculations for the % soda ash (Molar mass = 105.99 g/mol) in your sample. You have calculated the [NaOH] to be 0.10012 M and the [HCI] to be 0.1007 M. Your lab partner prepared the soda ash sample by adding 2.352 g of unknown into 748.0 mL of distilled water. You prepared the sample by adding 28.0 mL of soda ash, 55.0 mL distilled water, 4 drops of phenolphthalein indicator and you filled the burette with HCI. The initial reading of the burette was 0.56 mL. The pink solution turned colourless at 21.92 mL and your lab partner noted down the volume of 43.81 mL for the second inflection point. Looking at the following set up below, how many errors are present from the information presented above? [(0.1012 M) x (0.4325 L) x (1/2) x (105.99 g/mol)] 2.352 g r %Ca2+ x 100% 25.00 mL 748.0 mL)| 1 error 5 errors 2 errors 3 errors LJ.0U TIL [2.352 g z ( 748.0 mL O1 error 5 errors 2 errors 3 errors 0 errors 4 errors

You are preparing standard acid and base solutions for the laboratory, using potassium hydrogen phthalate (KHC₈H₄O₄, abbreviated KHP) as the primary standard. KHP (molar mass = 204.22 g/mol) has one acidic hydrogen. You prepared solutions of both NaOH and HCl. It took 22.65 mL of the NaOH solution to titrate (react exactly with) 1.55 g KHP. It then took 32.35 mL of HCl solution to titrate 25.00 mL of the NaOH solution. What is the molarity of the HCl solution?

It is desired to prepare 600 mL of 0.250 normal Ba(OH)2 for use in the reaction:2 HCl + Ba(OH)2  BaCl2 + 2 H2OHow many grams of Ba(OH)2 are needed?