Surface chemistry Questions and Answers

Pick the odd one out. Stirring Increase in surface area Increase in pressure Decrease in temperature

Micelles consist of milk proteins and other molecules suspended in water. a soluble form of vitamin D. aggregates of alcohol molecules. None of these responses is correct. a broken-down form of

The average adult heart pumps about 84. mL/s of blood at 72 beats per minute. Suppose you need to calculate how long it would take the average heart to circulate 1800. mL of blood. Set the math up.

The protein collagen has an isoelectric point of pl = 6.60. This is the pH at which the number of positive charges on the protein surface equals the number of negative charges on the protein surface.

Calcium and magnesium ion from a 105 litre sample of hard water was quantitatively precipitated as carbonates and weight of ppt obtained was found to be 568 g. Precipitate lost 264 g of weight on

A substance has a higher temperature when its particles have a higher average kinetic energy. Imagine two different substances that are both pure, meaning they each contain only on type of matter.

An oxygen (O₂) molecule is adsorbed on a patch of surface (see sketch at right). This patch is known to contain 289 adsorption sites. The (0₂) molecule has enough energy to move from site to site, so

9) Show the correct link according to description on the right: a) Hypotonic b) Isotonic c) Suspension d) Osmosis e) Dialysis f) Solution Solution has a lower solute concentration as the concentration

If you added 35.5 ml of an HCl solution to 35.5 ml of an NaOH solution and the temperature increased from 25.5 °C to 36.5 °C how much heat transferred in this process? The density of the mixture is

Match the terms about analytical precipitations to their definitions. The adsorption, occlusion, or inclusion of impurities along with the desired analyte in a precipitate. The binding of impurities

What is a watershed? Which watershed do you live in? When it rains at your home, what creek and river does the water travel to?

Identify the improved version of the sentence below. Learning how to knit can be a relaxing and therapeutic activity. It is a good idea for children to learn to knit in school. Some might argue that