Answer in 60

Answered By: Alex Powell Date: created: Aug 24 2021

Input interpretation

(glycerol | dynamic viscosity)/(methanol | dynamic viscosity)

Result

1717

Key moments in video
From 00:11 — Viscous liquids tend to stick to the pipette tip

From 00:15 — Use low retention tips to reduce the amount of residual liquid

From 00:18 — Use reverse pipetting technique for accuracy

From 00:21 — Press the operating button to the second stop before aspirating

From 00:25 — Keep pipette vertical and aspirate slowly

From 00:58 — Empty the excess liquid

Related querie

Answered By: Isaac Wilson Date: created: Feb 17 2022

What is the viscosity of glycerol?

Considering the following example from our measurements: for glycerol at 383.29 K, using spindle SSA/18 at N = 100 RPM the measured viscosity was 11.10 mPa·s.

Is glycerol a viscous liquid?

Glycerol (/ˈɡlɪsərɒl/), also called glycerine in British English and glycerin in American English, is a simple polyol compound. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic.

What is the viscosity of water?

The viscosity of water at a temperature of 20 degrees Celsius is approximately 0.01 poise or 103 Pa. s (Pascal seconds). Viscosity is a measure of the resistance of a fluid to deformation at a given rate.

What is the value of viscosity of glycerol?

Abstract. The dynamic viscosities of glycerol were measured over the temperature range (293–394) K and atmospheric pressure using a Brookfield thermosel system. The combined expanded uncertainty of reported viscosity is better than 3.0% with a level of confidence 0.95 (k = 2).

What is the viscosity of glycerol or water?

The calculated viscosity values of water around 140.15 K differ by several orders of magnitude for the four systems studied. However, the value for glycerol−water mixtures is close to 1011 Pa·s.

Why is glycerol more viscous than water?

(i) Glycerine has stronger intermolecular forces than water hence, it is more viscous than water.

Is glycerol very viscous?

Fuel oil, lubricating grease, and other long-chain alkane molecules are quite viscous for this reason. Glycerol, CH2OHCHOHCH2OH, is viscous partly because of the length of the chain but also because of the extensive possibilities for hydrogen bonding between the molecules.

Is glycerol highly viscous?

Glycerol undergoes extensive hydrogen bonding due to the presence of 3 –OH groups. As a result the glycerol molecules are highly associated and thus it has high viscosity.

What is viscosity of water and oil?

Value of Viscosity. At room temperature viscosity of water is 1 mPa. Sec and for vegetable oil is 57 mPa. Sec.

What is the standard value of viscosity?

Viscosities for all standards sold by CANNON are based on the National Institute of Standards and Technology (NIST) value of 1.0016 mPa•s (centipoise) for water at 20°C (68°F).

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