Calculate the molarity of a NaOH solution if 32.02 mL of the solution neutralizes 0.2262 g of oxalic acid

Q: The portion of the condensed vapor is returned as a reflux to the rectification column is to. O a.…

A: Ans : A        Enrich the less volatile component in the liquid

Q: A flash point that is too low can be a fire hazard and may indicate contamination with more volatile…

A: Flash point: Flash point is the minimum temperature at which vapors from the fuel momentarily…

Q: Q 6/ A- Given that the density and atomic weight of iron are 7.65 g/em' and 55.859 g/mol…

A: As per our company guidelines,we are supposed to answer only first question. Kindly repost other…

Q: Estimate the concentration of ethylbenzene in fish tissue in a lake with a concentration in water of…

A: Ethylbenzene concentration in water = 120 mg/L

Q: 3.Calculate the molality of a solution prepared by dissolving 15g of sugar C12H22011 in 3.50X102mL…

A: Given mass of sugar =15 molar mass = 342.3 gmolv =3.5 x 102 ml

Q: QUESTIONS Q1.a) Write the characteristics of acetone and explain the safety precautions in the…

A: (A)

Q: Homework Q1:- prepare 0.7% potassium Chloride (KCI) in 0.3 liter ?

A: Given  X = 0.7 % Total volume (V) = 0.3 Liter Final volume (Vf) = ?

Q: (2) Translation: Effluents from metal finishing plants have the potential to discharge unwanted…

A: Step 1: Step 2: Step 3: Step 4:

Q: In chemistry class, a student conducted an investigation about factors affecting the solubility of…

A: The dissolution of CuSO4 in water is a completely physcial process as no new chemical product is…

Q: It is determined that the Ca++ is the contaminant ion for a mud system. In the same field, anhydrite…

A: Calcium Anhydrite is a mineral with the chemical formula CaSO4, which is easily hydrated in presence…

Q: A volatile solute was added to a solvent to form an aqueous solution. Which will best represent the…

A: Explanation of first question When we will add solute  to a solvent, the vapor pressure of the…

Q: 1. An absorption tower is used to recover benzene from air. The rate of the feed gas is 100kmols/hr.…

A: Rate of inlet feed gas at the bottom, V­b = 100 kmol/h Mole fraction of benzene in unlet gas, yb =…

Q: Purification of copper from ore comes from a single replacement reaction after the copper ore has…

A: In this, cooper sulfate is mixed with the aluminum metal and single replacement reaction takes place…

Q: Solute S has a partition co-efficient of 3.0 between water (Phase 1) and Chloroform (Phase 2). (a)…

A:

Q: Radium decomposes in air at the rate proportional to the present amount. It is found that in 20…

A:

Q: 13. Addition of non volatile solute to the solvent.... a. decreases the vapor pressure b. increases…

A: Above MCQ's are related chemical thermodynamics. As per BARTLEBY guideline, As you not specified…

Q: Decomposition of a gas is second order. When the initial concentration of gas is 5x10-4, it is 40%…

A: Given Data : The  rate law of the above reaction is given as  -rA=-dCAdt=KCA2…

Q: The concentration of potassium ions in seawater is approximately 0.049 %(m/v). How many grams of KCl…

A: Given that, m/v = 0.049% Volume of water = 1.0 L = 1000 mL It is required to calculate the grams of…

Q: Design the Absorption system to absorb (HCI + Cl2) gas mixture. Feed Gas: 800 kg/hr of HCI & 900…

A: Absorption system Feed-HCl+Cl2+air Solvent-pure water HCl=800 kg/hr Cl2=900 kg/hr Air=300 kg/hr…

Q: How many grams of barium sulfate will form when 35 mL of 0.160 M barium chloride reacts with excess…

A:

Q: Effluent from a biological process is treated using activated carbon and allowed to come to…

A: The concentration versus the adsorbed solute is given.

Q: A simple batch still (one equilibrium stage) is separating a 50 mole feed charge to the still pot…

A: Given, The pressure, P = 1 atm The moles of the feed, F = 50 mol The mole fraction of methanol, xF=…

Q: Active Raw Dosage Form Actual Yield Formulation Packaging Ingredient Materials 2 kgs calcium 1.75kgs…

A: The amounts of chemical compounds in a chemical reaction are explained by stoichiometry. The base of…

Q: Calcium carbonate reacts with hydrochloric acid solution according to the reaction below: CaCO (s) +…

A:

Q: Inhalation of PM2.5 can be prevented by wearing face masks.   True or False

A: Given that if we wear face mask then can it prevents from PM  2.5

Q: The oil + water mixture containing 75% oil is extracted with hexane. 32.55% oil-containing extract…

A: Given data: Oil- water mixture contains 75% oil. Oil is extracted with hexane 32.55% oil-containing…

Q: A 70-kg individual drinks 2 L/day of water containing 0.10 mg/L of tetrachloroethylene for 12 years.…

A: Given that- Weight of individual, BW= 70 kg Contamination rate of tetrachloroethylene, C=0.10 mg/L…

Q: Calculate mole flux rate across the length 1 mm for He and N2 mixture for which concentrations are…

A:

Q: 1- Why HCI is not primary standard solution?

A: Since we are entitled to answer only 1 question, we will answer the first one as it is not mentioned…

Q: Calculate the percentage ionization of acetic acid in solutions having concentrations of 2.0 M, 0.20…

A: Given data: Solution of acetic acid with differing concentrations is given.

Q: Calculate (a) the rate of evaporation, or the rate of water evaporated at the evaporator, and (b)…

A: The potassium chromate in feed is obtained in kilograms. The water in feed and cake is obtained. The…

Q: How many moles of MgCl₂ are present in 54.0 mL of 0.135 M MgCl₂ solution?

A:

Q: Problem No. 2: 300 kg of a saturated solution of silver nitrate (AgNO3) at 373K are cooled to 293K…

A: Introduction In crystallization operation, the remaining solution, once the crystals have been…

Q: A wastewater sample is experimented for 5-day BOD at 20°C and it is found to be 120 mg/L. If the…

A: Biochemical oxygen demand (BOD): It is the amount of oxygen required for the decomposition of the…