Answer:
8.437282129392383
Explanation:
We assume you are converting between grams Water and mole.
You can view more details on each measurement unit:
molecular weight of Water or mol
The molecular formula for Water is H2O.
The SI base unit for amount of substance is the mole.
1 grams Water is equal to 0.055508435061792 mole.
Note that rounding errors may occur, so always check the results.
250 kJ of energy are removed from a 4.00 x 102 g sample of water at 60˚C. Will the sample of water completely freeze: Yes, because there is enough energy.
<h3>At what temperature would a sample of water freeze?</h3>
- Note from the Facilitator: At certain temperatures, water changes its condition due to temperature variations. At sea level, fresh water changes from a solid to a liquid at 32°F (0°C). Liquid water freezes at temperatures below 32°F (0°C); this temperature is known as the freezing point of water.
- The fact that a single water molecule cannot transform into a solid, liquid, or gas is the answer. These names refer to collective behaviors of water molecules rather than to individual molecules.
- For instance, the solid (ice) has a collection of molecules that are bound together and arranged in a predictable manner. That cannot be accomplished by a single molecule alone
250 kJ of energy are removed from a 4.00 x 102 g sample of water at 60˚C. Will the sample of water completely freeze: Yes, because there is enough energy.
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Answer:
The amount of isopropyl alcohol contained in 150 ml of the solution is 117.15 grams
Explanation:
The density of a substance is the mass per unit volume, therefore, we have;
The density of the isopropyl alcohol = 0.785 g/ml at 25°C
The density = mass/volume
Mass = Density × Volume
The mass of the 150 ml of isopropyl alcohol is therefore;
Mass = 0.785 g/ml × 150 ml = 117.15 g
The amount in grams contained in 150 ml of sample = 117.15 g.
Electrophoresis can be defined as a molecular biology procedure to separate biomolecules depending on the weight and electrical charges.
<h3>What is Electrophoresis?</h3>
Electrophoresis is a molecular biology procedure in which biomolecules such as DNA or proteins can be separated by their electrical charges and weight. For example, DNA has a negative charge thereby it migrates to the positive pole under an electrophoretic field and different DNA molecules can also be separated by their weight in base pairs.
In conclusion, electrophoresis is a technique used in molecular biology laboratories to separate biomolecules depending on the weight and electrical charges.
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