Which one hardness type that remain after boiling process. O Temporary hardness. O Permanent hardness.

Q: What are the problems encountered if tablets are under or excessively lubricated?

A:

Q: When using a TD pipet, one should not O blow or shake out the remaining liquid O place the meniscus…

A: Given that : We have to identify that while using TD pipet one should not :

Q: Which of the following statements about extractions and work ups is true

A:

Q: Name the technique(s) and briefly describe the procedureyou would use to separate each of the…

A: Since we only answer up to 3 sub-parts , we’ll answer the first 3.Please resubmit the question and…

Q: 16-At any stage of hydration, the hardened paste consists of. a- crystals of Ca(OH)2 17- . .is a…

A: 16 )Answer  d) all of them Because all options are factors of hydration the hardened past .

Q: 0.4ml to minims

A: ml and minims are unit of Volume   1 ml = 16.2307 minims 0.4 ml =0.4 × 16.2307 minims0.4 ml =6.49228…

Q: why is it necessary to use decarbonated cola?

A: To do titration of cola we need decarbonated cola.

Q: What is the best technique for pushing down on the plunger to carefully form a drop? Select the most…

A: To decribe the best technique for pushing down the plunger to carefully form a drop.

Q: How is recrystallization of an impure solid accomplished?

A: Recrystallization is a technique used for the purification of a solid from impurities.

Q: Why is important to add a spin bar, spin vane or boiling stones to a mixture to be heated? These…

A: Bumping of solution result in loss of solution.

Q: O Grinding would decrease the surface area and speed up dissolving O Grinding would increase the…

A: Grinding is the process of making bigger particles into smaller particles. That is, we will make…

Q: Organic liquids are usually less dense than water.  True  False

A:

Q: What specimens and procedures require a chain of custody form? Put in a table with corresponding…

A:

Q: Having too much sample can cause an inaccurate melting point under these Sir how will the observed…

A: If heating occurs too quickly, the material cannot reach thermal equilibrium. Pure substances melt…

Q: Which diagram best represents a liquid–liquid emulsionsuch as milk? The colored balls represent…

A: Emulsion is a fine dispersion of droplets of one liquid into another liquid in which it is not…

Q: Question 10 The distance traveled by the solvent along the paper is called solvent front. A True…

A:

Q: Lubricants are substances with high ____________ that reduce friction between working parts.

A: The substances which are used to reduce the friction between the moving surface is known as…

Q: .Pour point define as - 26 A - Lowest temperature at which fuel will flow under cooling. O B -…

A: Pour point of a crude oil is defined as the lowest temperature at which fuel will pour or flow when…

Q: Q.5. How the reflux is used in the petroleum industry?

A:

Q: unsaturated solution

A: Solubility is the maximum amount of solute which can be dissolved in specific amount of solvent and…

Q: Filtration of samples A, B, and C show no residue left. After letting them dry in different beakers,…

A: Filtration is a technique to separate insoluble part from the soluble part in a solution.  No…

Q: If a small amount of impurity is present in a sample, what will be its effect on the melting point…

A: Types of impurities that can be present in the sample: Miscible impurity: Such impurity is soluble…

Q: .How many types of hardness Two. O Three. O Four. O

A: There are two types of hardness, Temporary hardness Permanent hardness

Q: Please help filling out

A: NaCl   Type = Salt   Central atom considered = No one ( because it is an ionic crystal, so central…

Q: Saturating the aqueous phase by adding a salt such :as Na2CO3 is called :Select one a. Drying agent…

A: b. Drying agent.

Q: Solid particles sticking together to form larger particles describes the process of   a. accretion.…

A: Accretion is a process of solid particles sticking to one another to form a larger particles.

Q: grams

A:

Q: Tadpole Mold Trout Bear Cattails

A:

Q: Identify the INCORRECT statement about the additives O a. Pour point additives increase the pour…

A: Two questions based on surface chemistry, which is to be accomplished.

Q: The density of detergents can be measured by . ? a. viscometer b. micromeritic C. ISE d. tensiometer

A: Density of detergent is measured by instrument given below

Q: how temporary hardness of water can be removed?

A: Hardness in water is due to the presence of concentration of magnesium and calcium…

Q: A veneer can be bonded to tooth structure or a metal subframe. a. True b. False

A: A veneer is a layer of material placed over a tooth. Veneers can improve the aesthetics of a smile…

Q: . Explain the theory of emulsion.

A: Given emulsion   We need to explain the theory of emulsion.

Q: recrystallization

A:

Q: Which one hardness type that remain .after boiling process Temporary hardness. Permanent hardness.

A: There are two types of water hardness; Temporary hardness  Permanent hardness

Q: How many types of hardness. Two. Three. Four.

A: The hardness of water is the salt of magnesium and calcium.

Q: Highest Baling Point ?

A: The temperature at which the vapor pressure of a liquid becomes equal to the atmospheric pressure is…

Q: The paints are applied onto the plaster when this is partially dry. What would be the result of…

A: The first and foremost pre-requisite before painting the wall is to allow the plaster to dry. Wet…

Q: maintain the dryness

A: In this question we have to explain that why is there a need to maintain the dryness of the…

Q: heat stability of oil in cold water fish and warm water fish?

A: The temperature of the fish mainly depends upon the temperature of the water in which it lives…

Q: cooking utensils

A: Dear student I have given answer to your question in the image format.

Q: A pond water sample was found to have 16 mg CaCO, in a 100.0 mL sample. Calculate the concentration…

A:

Q: Which of these statements about suspensions is NOT true? O Over time, their particles will settle if…

A: Suspension is the mixture which is heterogeneous that contains large solute particles. And these…

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.