Hydrogen peroxide is a powerful oxidizing agent used in concentrated solution in rocket fuels an dilute solution as a hair bleach. An aqueous solution of H2O2 is 30% by mass and has density o 1.11 g/mL. Calculate its a. molality b. mole fraction of H2O2 c. molarity

Q: What is the difference in how a simple distillation is performed compared to how a fractional…

A: Distillation method is used to separate the liquid-liquid mixture, the liquid with lower boiling…

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A: The objective of this question is to find out how much sterile water is needed to dilute a 20%…

Q: You need a 50% alcohol solution. On the other hand, you have 135mL of a 35% alcohol mixture. You…

A: The concentration of a mixture can be measured in terms of mass by mass percentage. This…

Q: Describe how to prepare 100.00ml of a 0.250M sodium chloride solution using sodium chloride powder.

A: Volume of solution = 100 mL OR 0.1 L

Q: Define the following terms.  Normality of solution

A: A mole of a substance refers to the mass of that substance which will contain same number of   atoms…

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A:

Q: A 0.6L of a solution is prepared by dissolving 110g of NaF in it. The molecular weight of NaF is…

A: Given, Volume of NaF solution = 0.6 L Mass of NaF = 110 g Molecular weight of NaF = 41.9 g/mol

Q: compare and contrast a saturated and a supersaturated solution

A: Saturated solution = A saturated solution is a solution which cannot dissolve anymore amount of…

Q: number of grams

A:

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A:

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A:

Q: Define water of hydration

A:

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A:

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A: Marine life is adversely affected by low or very high pH values. Below pH 5, most fish are unable to…

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: What mass of solvent will it take to make 260 g of a 7.5% w / w solution

A: Given :-  mass of solution = 260 g  % w/w = 7.5 %   To calculate :-  mass of solvent

Q: Which way of expressing concentration includes (a) volume of solution; (b) mass of solution; (c)…

A: Mass percentage It is the amount of solute in grams present in 100 grams of the solution. Therefore,…

Q: What type of contaminants, if any,  are found in the mountain water?

A: Type of contaminants in the mountain water.

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A: We have to calculate the mass of solution needed by the student for the given experiment

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A: Consider the given information is as follows; 64.0mL portion of a 1.60M solution is diluted to a…

Q: III. Complete the table below. Show complete solutions. Box/Encirce your final answers reported in…

A: Given,  12.58 g KOH dissolved in 100 ml ethanol.  Mass of KOH = 12.58 g  Molar mass of KOH = 56.1…

Q: How much stock solution AND water is needed to dilute a 2.5M solution onto a 350mL 0.75M solution?

A:

Q: A 20µM solution is prepared by diluting ml of a 0.1mM solution into 500ml of wate

A: Number of moles of solute before dilution is equal to number of moles after dilution  M1V1 = M2V2…