Exercise: Dissolved Oxygen Determination in Water by Modified Winkler Method Question 1: Write the chemical equation for the addition of MnSO4 and alkali- iodide-sodium azide in the water sample. Question 2: What is the chemical identity of the white precipitate formed after addition of MnSO4 and alkali-iodide-sodium azide in the water sample. Question 3: Explain the formation of the blue color when starch was added.

Q: Solid lead nitrate is slowly added to 75.0 mL of a 0.0624 M ammonium carbonate solution. The…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Solute S has a distribution constant of 4.1 between water (phase 1) and hexane (phase 2). A 82.0 ml…

A: Given: Between water and hexane solute has Distribution constant k=4.1 Volume of water phase V1= 82…

Q: moisture is removed from a food using oven drying m method. the total mass of the final dried…

A: Given: Moisture removed from food using oven drying method.

Q: In a solution there is 15.3 g of phosphoric acid that has 8.6 L of water, 10.9 g of calcium…

A: Write the reaction between phosphoric acid and calcium hydroxide as follows: H3PO4 + Ca(OH)2  →…

Q: Consider an aerobic production of acetic acid (P) from ethanol (S) using Acetobacter aceti bacteria.…

A: The objective of the question is to calculate the yield coefficient (Y P/S) in the aerobic…

Q: Fish, like other animals, need oxygen to survive. Oxygen gas dissolved in water can he used by fish,…

A:

Q: In the titration of proporanolol tablets using perchloric acid, the indicator used is Select one: O…

A: Titration is nothing but it is a process that is used to calculate the concentration of the unknown…

Q: Calculate the composition of the equilibrium extract and raffinate phases produced when a 35 % by…

A: SOLUTION:A. To solve this problem, we can use the lever rule along with the equilibrium miscibility…

Q: Solid sodium sulfite is slowly added to 50.0 mL of a 0.159M silver nitrate solution until the…

A: Given: Silver nitrate solution: 50ml, 0.159M The final concentration of SO32- = 0.0408M

Q: Steelworks activities are important sources of fine particles, which may affect air quality in urban…

A: Introduction Steelworks activities are important sources of metallic fine particles which may affect…

Q: An iron-carbon alloy initially containing 0.266 wt% C is exposed to an oxygen-rich and virtually…

A: Initial concentration of carbon = 0.266 wt % Temperature = 1080 0C Surface concentration of carbon =…

Convective Mass Transfer between Phases

Mass transfer means the transport or movement of mass using streams, phases, components, and so on from one location to another.