ma 12. 3.000 g BaCl₂.H₂O (molar mass=244.263 g/mol) was added to a solution of 100 mL of 0.050 M Na₂CO3. BaCl₂ (aq) + Na₂CO3 (aq) → BaCO3 (s) + 2NaCl Ksp for BaCO3 = 1.1 x 10-¹5 Calculate the concentration of CO32 in the resulting solution. a) 5M b) 0.050 M c) 0.072 M d) 1.5 x 10-¹3 M e) 1.5 x 10-¹4 M

2.661 g C4H4O4  is dissolved in H2O and titrated with NaOH. 22.7 mL of a NaOH solution were required to titrate the C4H4O4 solution. What is molarity of NaOH solution? C4H4O4(aq) +  2NaOH(aq)  --> Na2C4H2O4(aq)  +   2H2O(l)

Utilizing the molarity equation, calculate the concentration of Potassium Hydrogen Phthalate (KHP) used in each trial. What was the average concentration of KHP solution?

H2. Titrations are performed by a scientist in the laboratory as follows: a solution of deuterated hydrochloric acid contains 1.08 g DCl in 750 ml of deionised, distilled water. An average amount of 14.95 ml of the DCl(aq) solution is titrated with 25.0 ml of Ca(OH)2 to produce an endpoint (as determined by an appropriate indicator). What is the molarity of the Ca(OH)2 solution? You must include all of your calculations    Please give typed answer

5. Calculate the concentration of the hydrochloric acid if a 20.00 mL sample is titrated with standard sodium carbonate solution. 2 HCI (aq) + Na₂CO3(aq) → H₂O (1) + CO₂(g) + 2 NaCl (aq) The titration required 10.00 mL of 0.250 mol/L sodium carbonate to neutralize the acid. rn Lakes College

You have been provided with a 2.08 x 10-2 L  sample of lithium hydroxide (LiOH) of unknown concentration. You perform a titration with 2.19 M nitric acid (HNO3), and find that 24.6 mL are required to reach the equivalence point (as determined using a coloured indicator). What is the concentration of the lithium hydroxide solution in mol L-1?

What mass of CO2 will be produced from the reaction of 50.0 mL of 0.250 M HCl with an excess of 1.00 M Na2CO3? The balanced chemical equation for this acid + carbonate reaction is: 2HCl(aq) + Na2CO3(aq) >2NaCl(aq) + H2O(l) + CO2(g)

The concentration of hydrogen peroxide H202) solutions can be determined by titrating with HI according to the balanced chemical eauation below. If 35.2 mL of 1.5 M HI solution was required to titrate 135.2 mL of a H20, solution what is the molarity of the H20, solution? 2 HI(aq) + H202(aq)-> I2(aq) + H2O(l)

Two solutions consisting of 169 mL of 0.6 M lead(IV) nitrate and 456 mL of 0.8M sodium sulfate are mixed. What is the final concentration of the aqueous sulfate ion?  Pb(NO3)4(aq)+2Na2SO4(aq)-->Pb(SO4)2(s)+4NaNO3(aq)

You mixed 5.00 mL of a 2.50 M solution of FeI2 with 5.00 mL of a 3.00 M solution of KOH.  What mass of Fe(OH)2 precipitate would be formed? FeI2 (aq)  +  KOH (aq) -->  Fe(OH)2 (s)  +  KI (aq)