Q1.18] Indicate the direction, left or right, of the equililbrium shift when the accompany applie...
Indicate the direction( left or right) of equilibrium shift when the acompanying stress is applied to the system: HCL (aq) is added to 4CL- (aq) + Co(H2O)62+ = CoCL42- (aq) + 6H2O(l) ****please address how the common-ion effect is observed in this reaction and how it influences the equilibrium****
4. You were calculate the magnesium hydroxide as there antacid of choice. (10) performing an antacid lab and provided the following data from your class mate. Help them the missing information in the results table. Show all work below. The student choice to use Concentration of HCl 0.511 M Concentration of KOH 0.508 M Mass of Antacid Tablet1.2568 Volume of HCl added 25.00 mL Volume of KOH titrated 8.05 m Mole initial acid Results Table Moles HCl excess Moles HCI...
please solve what you can and show your work. I'm not really good in chemistry??♀️ Home assignment: Chapter 4: Aqueous Reactions and Solution Stoichiometry 1) Of the species below, only is not an electrolyte. A) HCI B) Rb2804 C) Ar D) KOH E) NaCI 2) Aqueous potassium chloride will react with which one of the following in an exchange (metathesis) reaction? A) calcium nitrate B) sodium bromide C) lead nitrate D) barium nitrate E) sodium chloride 3) When aqueous solutions...
56,57,58,59,60,61,62 56) For the reaction 3H2(g) + N2(g)s-2NH(g), determine the equilibrium constant at 600°C if at this temperature, the equilibrium concentrations are: [N2 453 M; H:-2.49 M and [NHs] 7.62 M 57) When a sample of aqueous hydrochloric acid was neutralized with aqueous sodium hydroxide in a calorimeter, the temperature of 100.0 g of water surrounding the reaction increased from 25.0°C to 31.50. If the specific heat of water is 1.00 calV(g.°C), calculate the quantity of energy in calories involved...
52) (a) Use the Henderson-Hasselbalch equation to calculate the pt of NH CI and 0.15 M in NHb. (b) How would you prepare an NIH-CI-NHs buffer that has a pll of 9.00 (The Ka for NH, is 1.8 x 10) 53) A buffer solution contains carbonic acid (H:COs) and sodium bicarbonate (NaliCO,), each at a buffer solution that is 045 Mi concentration of 0.100 M. The relevant equilibrium is shown below, What is the pll of this buffer solutiont 54)...
DETERMINATION OF A CHEMICAL FORMUL 4. If some of the calcium metal remains unreacted when you start the titration, the calcium will react with hydrochloric acid to produce hydrogen gas. CaloH)₂ + 2HCl cacla & H2O Ca (s) + 2 HCl(aq) +CaCl2 (aq) + H2 (8) Would this cause error in the titration? If so, would more or less HCl be required? How would this affect the molecular formula for calcium hydroxide? bicarbonate that must be used to neutralize the...
53) A buffer solution contains carbonic acid (H CO) and sodium bi carbonate (NaHCO), each at a concentration of 0.100 M. The relevant equilibrium is shown below. What is H:COs(ag)+ HOo (a)+HCOs (ag) K.-4.5x 10 54) At 40 C, the pH of water is 6.77, what is lon-Prodact Constant for Water, Kw.at 40°C 55) If a solution of acetic acid has a pH-2.74 and a pK474, wh in the solution? Show your calculations is the ratio of (CH Co/ICOH) 56)...
4.30. Using solubility rules, predict the solubility in water of the following ionic compounds. a. AI(OH) b. CaN C. NH4CI d. KOH 4.32. Using solubility rules, decide whether the following ionic solids are soluble or insoluble in water. If they are soluble, write the chemical equation for dissolving in water and indicate what ions you would expect to be present in solution. (NE SO b. BaCO c. Pb(NOs)2 d. Ca(OH) 4.34. Write net ionic equations for the following molecular equations....
i 52) (a) Use the enderson-Hasselbalch equation to calculate the pH of a buffer solution that is 0.45 M in and 0.15 M in NH,. (b) How would you prepare arn (The Ks for NH, is 1.8 x 10) NH4CI-NH, buffer that has a pHi of 9.007 of 0.100 M. The relevant equilibrium is shown below. What is the pH of this buffer solution? 9 54) At 40 C, the pH of water is 6.77, what is lon-Product Constant for...
ALT CHEM 125 Name Determining the Ksp of Calcium Hydroxide Calcium hydroxide is an ionie solid that is sparingly soluble in water. A saturated, aqueous, solution of Ca(OH), is represented in equation form as shown below. Ca(OH)2 (5) --- Ca' (aq) + 2OH(aq) The solubility product expression describes, in mathematical terms, the equilibrium that is established between the solid substance and its dissolved ions in an aqueous system. The equilibrium expression for calcium hydroxide is shown below. Kp - [Ca][OHT...