71K Learn about acid-base indicators. Understand what acid-base indicators are, how they work to determine if a solution is acidic or basic, and see the examples. Related to this QuestionWhat is the function of the indicator phenolphthalein? Explain the purpose of adding excess hydroxide compa...
What is the cation reaction with water, cation K_a, anion reaction with water, anion K_b, acidic base prediction, and pH of solution of sodium sulfate? What is the cation reaction with water, cation K_a, anion reaction with water, anion K_b,...
Calculate the concentration of oxalate ion (C_2O_4^{2-}) in a 0.175 M solution of oxalic acid (C_2H_2O_4). (For oxalic acid, Ka1 = 6.5 x 10^{-2}, Ka2 = 6.1 x 10^{-5}) Calculate the concentration of oxalate ion (C2O42-) in a 0.175 ...
Calcium oxalate, CaC_2O_4, is very insoluble in water. What mass of sodium oxalate, Na_2C_2O_4, is required to precipitate the calcium ion from 37.5 mL of 0.104 M CaCl_2 solution? Calcium sulfate is a sparingly soluble solid (Ksp = 2.4E-5). What is the calcium concentration in ...
When strong acids or strong bases are added to the solution, drastic changes in pH may occur. In order to prevent this, buffer solutions may be used. Buffers are composed of basic and acidic components that can neutralize the added acid ...
Answer to: Chemical used in photography is ... . a. sodium sulphate b. sodium sulphite c. sodium thiosulphate d. sodium...
Calculate the pH of a 0.200 M solution of sodium lactate, NaLac (a salt soluble in water and ionizes completely to produce Na+ and Lac- ions). Which acid and base react to form water and sodium sulfate? Determine whe...
Why would a molecule change color under acidic or basic conditions? Why is concentrated sulfuric acid indicated as a liquid and no aqueous solution? Why are closed-toe shoes worn in the chemistry lab? Why would magnesium remove tarnish from silver?
Introduction to Chromatography: Quantification of copper in solution - the standardized solution of NaOH is used: o Will the solution coming off of the ion exchange column and collected in a beaker or flask be acidic, basic, or neutral?
The acidic solution was cooled to 0° C. and treated dropwise with an aqueous solution of sodium nitrite (15.46 g, 0.224 mol, 4 eq, 60 mL H2O). The solution was stirred at 0° C. for 2 hr. The reaction mixture was basified using saturated aqueous sodium bicarbonate (pH ca. 8). ...