Status: Tries remaining: 2 Points possible: 1.00 If the density of aluminum is 2.70 g/mL and...
Question 5 Status: Tries remaining: 3 Points possible: 1.00 Calculate the molarity of a solution prepared by dissolving 0.187 g of KHP in enough water to make 125 mL of solution. The formula of KHP is KC H504 Answer: CHECK Question 6 Status: Tries remaining: 3 1 Points possible: 1.00 A beaker containing 0.400 g KHP was titrated with NaOH solution. The pale pink end point was reached after 18.55 mL of NaOH solution was dispensed. What is the molarity...
Question 6 Status: Tries remaining: 3 | Points possible: 1.00 Suppose in an experiment to determine the amount of sodium hypochlorite in bleach, 0.0000460 mol KIO3 were titrated with an unknown solution of Na S,0a and the endpoint was reached after 17.80 mL. How many moles of Na,S203 did this require? Answer: CHECK Question 8 Status: Tries remaining: 3 | Points possible: 1.00 A 25.00 mL solution containing 0.035 M sodium acetate is titrated witha 0.098 M solution of HCl....
Question 1 Status: Tries remaining: 2 | Points possible: 1.00 The reaction is a type of Choose.. that Saponification is the process of making soap from fats or oils Choose... which is the soap uses the addition of a to release the Choose... CHECK Question 1 Status: Tries remaining: 21 Points possible: 1.00 . The reaction is a type of Choose... condensation that fats or oils Saponification is the process of making soap from ,which ist esterification hydrolysis to release...
Question 6 Status: Tries remaining: 3 Points possible: 1.00 A beaker containing 0.400 g KHP was titrated with NaOH solution. The pale pink end point was reached after 19.55 mL of NaOH solution was dispensed. What is the molarity of the NaOH solution? Answer:
Question 5 Status: Tries remaining: 3 | Points possible: 1.00 Calculate the molarity of a solution prepared by dissolving 0.185 g of KHP in enough water to make 125 mL of solution. The formula of KHP is KC3H304. Answer:
Question 8 Status: Tries remaining: 21 Points possible: 1.00 Suppose you measure the absorbance of a yellow dye solution in a 1.00 cm cuvette. cm what is The absorbance of the solution at 427 nm is 0.46. If the molar absorptivity of yellow dye at 427 nm is 27400 M the concentration of the solution? Answer: Question 9 Status: Tries remaining: 2 Points possible: 1.00 If you plot the absorbance measurements of solutions vs. their concentrations, what is the slope...
which are soaps and which are not soaps?
Status: Tries remaining: 2 Points possible: 1.00 The cleaning ability of soap is based on its structure. Which structures represent compounds that can be used as soaps? m ✓ Choose... Not a soap Soap Choose.. Choose... Choose... Choose.. CHECK
Aluminum has a density of 2.70 g/mL2.70 g/mL. Calculate the mass (in grams) of a piece of aluminum having a volume of 267 mLmL . Express your answer to three significant figures. Iron has a density of 7.86 g/cm37.86 g/cm3 (1 cm3=1 mL1 cm3=1 mL). Calculate the volume (in dLdL) of a piece of iron having a mass of 4.94 kgkg . Note that the density is provided in different units of volume and mass than the desired units of...
Question 6 Status: Tres remaining 3 1 Points possible: 1.00 A beaker containing 0.400 g KHP was titrated with NaOH solution. The pale pink end point was reached after 18.55 mL of NAOH solution was dispensed. What is the molarity of the NaOH solution? Answer: CHECK
Question 7 Status: Tries remaining: 31 Points possible: 1.00 What is the net ionic equation for the reaction between KC,H,O, and NaOH? Select one: O C:H:0,- (aq) + K+ (aq) +Na+ (aq) + OH(aq) + (aq) + Na+ (aq) + CH,0,(aq) + H2O(1) C,H,O, (aq) + OH (aq) +CH,0,?- (aq) + H2O(1) O O CHOK (aq) + NaOH (aq) + K+ (aq) +Na* (aq) + C4H10 (aq) + HO (1) O C,H,O, K (aq) + NaOH(aq) — KNaC,H,O,? (aq) +...