2. DDT, an insecticide harmful to fish, birds, and humans, is produced by the following reaction: 2C,H;Cl + CHOCI3 → CH,Cls + H2O chlorobenzene chloral DDT In a government lab, 1142 g of chlorobenzene is reacted with 485 g of chloral. a. What mass of DDT is formed? b. Which reactant is limiting? Which is in excess? c. What mass of the excess reactant is left over? d. If the actual yield of DDT is 200.0 g, what is the percent yield?

Q: Imagine that we have excess NaCl solid on the bottom of a saturated aqueous solution of NaCl.…

A: When saturated solution is heated then this saturated solution becomes unsaturated.

Q: Make 3 serial dilutions, each generating 400 mL of a 1-in-4 dilution of a 3M stock solution

A:

Q: A 786 mLmL NaClNaCl solution is diluted to a volume of 1.19 LL and a concentration of 3.00 MM . What…

A: Solution :       The amount of moles in the solution remains constant even after dilution. The…

Q: A 887 mLmL NaClNaCl solution is diluted to a volume of 1.45 LL and a concentration of 6.00 MM . What…

A: The initial volume of the NaCl solution is = 887 mL The initial concentration of the solution is =?…

Q: 24. According to the label on a bottle of concentrated hydrochloric acid, the contents are 36.0% HC1…

A:

Q: A 50 mL sample of 50 % (m/v) acetic acid solution is added to water to give a final volume 75 mL.…

A: The given is 50% (m/v) acetic acid solution. 100 mL of solution contains 50g of acetic acid. Then 50…

Q: Prepare a solution of 50 ml at 5% m / v of NaHCO3.

A: Given  The (m/v) percentage of NaHCO3 = 5% The volume of NaHCO3 solution required = 50 mL

Q: Tropicamide Sorbic acid Sodium chloride Purified water ad Make isotonic solution 0.1% 0.02% q.s 60ml…

A: To make the isotonic solution, the amount of sodium chloride (NaCl) required can be calculated using…

Q: against icing on pedestrian paths to prevent accidents table salt is used. Why is that?

A: Table salt , NaCl helps to melt the and remove it from the surface.

Q: PPb contains 1 part of solution per 10° parts of solvent. True False

A: Answer  PPb contains 1 part of solution per 109 parts of solvent  We know…

Q: Using the prepared 10X TBE, calculate the volume of stock solution and double distilled water needed…

A: Dissolve the Tris base and boric acid in the EDTA solution. Adjust the pH of the solution to 8.3…

Q: Draw an outline of the recrystallization process- Assume all types of Impurities(Soluble, Insoluble…

A: Recrystallization is defined as a technique which is used to purify the solid compounds.

Q: Density of toluene- 0.86 g/ml Calculate the volume of toluene needed to make 50 mL of a 780 g/mL…

A:

Q: What is the solution of 6.5ml to cm³?

A: 1 ml is equivalent to cm3.

Q: A researcher requires 50 mL of a 30% acid solution made from the combination of a 40% acid solution…

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Q: Elaborate/Explain the following. Factors affecting solubility: 1. Stirring 2. Surface area of…

A: Solubility means a point at which solute is dissolved in solvent. There are various factors in which…

Q: Using M1V1=M2V2 Make 100ml of a solution that contains 0.5mM MgCl2, 15 mM CaCl2 and 120 mM KCl 0.5M…

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: 1. explain the influence of temperature and freezing on the stability of  mayonnaise. 2.  explain…

A:

Q: 4) 3) Given the plot of time vs temperature below, what is the temperature of the freezing point of…

A: 3) Freezing point is at the location where temperature starts remain unchanged even after change in…

Q: pure liqu PB liquid x solution B Esure solid x liquid x (saturate»

A: Phase diagram is a graphical representation of the physical states of a substance under different…

Q: I was given a task to formulate 80mg/15ml (473ml) of Theophylline suspension. But i dont know the…

A: Given, Volume of Theophylline = 473mL Density=80mg/15mL

Q: __________ is a measure of energy randomization or energy dispersal in a system.…

A: According to the first law of thermodynamics, the energy cannot be created or destroyed but the…

Q: Solve all parts otherwise I will downvote

A: The extent of the quantity of a substance that moves in a specific volume of a solvent is expressed…

Q: The phrase "like dissolves like" means

A: The process in which a solute (may be in solid, liquid or gaseous phase) tends to dissolve in a…

Q: In a clinical study, the drug methotrexate produced a blood level of 6.6 µg of methotrexate in each…

A:

Q: Which of the following is used to mix the solutions while heating? Glass stirrer / Stir Rod O a. O…

A: Some solutions need stirring  with heating

Q: A solution of HCI is standardized against a sample which has been previously found to contain 71.22%…

A: Here we have to determine normality of HCl and NaOH respectively in the following given titration.

Q: If the degree of hydration=70% and the weight of cement =100gm, the volume of non-evaporable water…

A: Given,  Degree of hydration= 70% = (70/100) = 0.7 Weight of cement = 100 gm. Then, volume of non…

Q: A miscible solution of water and ethanol is capable of ___________.     dispersion force…

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Q: Prepare 83ml of a 68% (W/V) NaOH solution (Mr(NaOH) = 40.00). Round to 2 positions after the decimal…

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Q: 3. Suppose that a 10M of NaCl solution with a volume of 3000ml is heated and looses 1.5liters of its…

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Q: Calculate the amount of alcohol stock (absolute) and water necessary for the following solution:…

A:

Q: What volume of the 1.0 x 10-4 M CV stock solution is needed to achieve 50.0 ml of the 5.0 x 10-6 M…

A: The objective of this question is to find out the volume of the stock solution needed to prepare a…

Q: Copper and lead is a potential contaminant of tap water Give 5 mitigation measures to reduce the…

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Q: sketch conc. aqueous sodium stearate solution with grease in it

A: Sodium stearate solution and grease.

Q: How do you prepare 1 liter of a 150 mM tris? From 1 Molar Tris Stock solution.

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Q: How do you know that 0.8% means 0.8 in 100mL?

A: Given,  How do you know that 0.8% means 0.8 g in 100mL? Use the formula as : Mass/volume percent =…

Q: 2. A solution made by adding 1.63 g of K2S (MM-110.3 g/mol) to 10.0 mL of H2O has a volume at 20°C…

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Q: Determine the weight of SDS powder needed in order to prepare 100ml of 25% SDS solution.

A: The weight by volume of a solution is the ratio between the mass of solute to the 100 mL of…

Q: Benzylkonium chloride solution 600 ml. make a solution such that 25 ml diluted to a liter equal to…

A: Here, ratio = 1:3000 % of solution = 12%

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".