Why should the stopper be removed from the separatory funnel: To allow air to displace the liquid None of above To prevent emulsion To decrease the solubility of two layers in each other

Q: What does it mean for water to be a polar molecule?

A:

Q: Determine the number of molecules present in 0.510 g of CO2

A: No. of molecules = No. of moles x Avogadro's number No. of moles = mass of substance/molar mass of a…

Q: Maintaining the proper level ensures a constant and uniform flow of rich amine from the contactor,…

A: SOlution: Whether the statement is true or not.

Q: Amorphous solids do not melt at a sharp temperature, rather these have softening range. a) True b)…

A: A

Q: Why is half frozen fruit punch always sweeter than completely melted fruit punch?

A: The sweetness depends on the concentration of the sugar.One of the main constituents of fruit is…

Q: you have an unmarked container of liquid. How would you determine if the liquid is an Acid, a Base,…

A: Use litmus paper If pH value is 7 = liquid is neutral pH more than 7 = liquid is basic pH less than…

Q: If no molecule in a body can escape, would body have any odor?

A: The odour is due to molecular diffusion, hence if the molecule could escape, the body will have…

Q: Use Avogadro’s number to convert between number of molecules and number of moles.

A: Avogadro’s Number: The term Avogadro’s number is represented as the number of elementary particles…

Q: tesources Lx Give Up? estion 17 of 28 > Give the IUPAC name for this molecule. CH3 CH3CHCH2CH2CH2CH…

A:

Q: Some substances are able to absorb large amounts of energy which increases the rotation of their…

A: Required : The specific heat capacity of the substance.

Q: hy do molecular compounds have low melting and boiling points compared to ionic

A: The molecules in covalent compounds are held by weak van der Waal's forces, hence they have low…

Q: The formation of ice from water is accompanied by whichof the following: (a) an absorption of heat…

A: Water can exist in solid, liquid, and in gas (vapor).

Q: How many moles are in 12.2 g of copper sulfate

A: Mass of Copper sulfate , m = 12.2 g To find = Number of Moles .

Q: A balloon is filled with a 15% salt/ 85% water solution. Explain what will happen to the balloon if…

A: For this we need to learn about hypotonic solution and it's affect on the inner concentration.

Q: Given a hot cup of coffee, and a warm cup of coffee, which can dissolve more sugar?

A: A sugar is added into a hot cup of coffee, and a warm cup of coffee,

Q: pH value at half of end point of the titration of ( 10ml of 0.1N HAc X 0.1N NaOH ) is 4.74 if (…

A:

Q: Is the number of molecules in one mole of N₂ greater than, less than, or equal to the number of…

A: We must establish if there are more, less, or the same number of molecules in one mole of N2 as…

Q: To increase the concentration of a solution, you would O increase the amount of solute O increase…

A:

Q: Differentiate between boiling point and normal boiling point.

A: Tthe conversion of solid state into liquid state occurs at a particular point and the tempertaure at…

Q: Four moles of hydrogen sulfide, H,S, would consist of how many molecules? molecules

A: Given Data Number of moles n= 4 mol

Q: At what temperature do we observe the maximum solubility?

A: The figure is associated with maximum solubility is as follows :

Q: Outline the procedures used to calculate the motion of molecules in fluids and atoms in molecules.

A: Motion of molecules in fluid can be determined by stokes law. which state as: the viscus drag force…

Q: State the effect of presence of impurity on the melting point of ice. Give one use of it.

A: The melting point of a substance is inversely proportional to the amount of impurity present in it.…

Q: Diffusion always drives molecules from higher concentration to lower concentration. Oa. True O b.…

A: The kinetic energy of the molecules results in random motion, causing diffusion. In this random…

Q: The CO2 molecule is a dipole. The statement is ______ a) True b) False

A: Option

Q: Q6) Jika dipol ditempatkan di dalam medan listrik. Pada orientasi apa energi potensial dipol akan…

A: Dipole placed in uniform electric field possesses potential energy due to its orientation in the…

Q: Select the most appropriate statement from the following regarding quality: Quality of saturated…

A: In a saturated mixture the mass fraction of vapour is vapour quality.

Q: Consider the possible structures formed during the mixing of an active material with an adsorbing…

A: When an active material is mixed with an absorbing active polymer is called spherical synthetic…

Q: Air, CO2, some plastics, water, and hand sanitizer are all transparent materials. Yet you can tell…

A: any object when interacts with light the following four phenomena can occur: 1.Specular Reflection:…

Q: are energy drinks conductive  (please cite sources)

A: Please note citation of any source or reference is not allowed.    Substances which conducts…

Q: Water can be sprayed easily when soap is added to it, Why?

A: Because addition of soap decreases the surface tension of water. The energy for spraying is…

Q: Q2/ A Petroleum cut has the following ASTM D86 distillation data:- Volume% 10 30 50 70 90 95…

A: Solution: Given Data: A petroleum cut has the following ASTM D86 Distillation data: Volume %…

Q: The surface tension of water can be increased by dissolving what in it?

A: The surface tension of water can be increased by dissolving what in it?