Answer:
1. Water can separate from salt solution by simple distillation
2. Simple distillation happens through a process heating and cooling liquids in order to separate the purify them, first, a liquid is heated producing a vapor, then, that vapor is cooled in a small tube called a condenser in order to form a separate liquid that liquid, sometimes referred to as the distillate, falls from the condenser into a separate container, the process works because it to liquids in the original vaporized a different point, meaning, the vapor that is created is comprised entirely of just one of the liquids in order for a simple work the 2 liquids boiling point must have been between at least 25 degrees Celsius about 77 degrees Fahrenheit
Explanation:
ig u can get info from the 2. to help u srry I don't feel like correcting my grammar but I hope that makes sense :)
Metals in their pure form are highly flammable. In this item, we are given with the pure magnesium metal in ribbon form reacting with oxygen in the combustion process. The equation that would best illustrate this given is,
2Mg + O₂ --> 2MgO
In this item, we are to determine the amount of MgO that can will be formed.
Magnesium
(4.81 g)(1 mol Mg/24.31 g Mg)(2 mol MgO/2 mol Mg)(40.3 g MgO/1 mol MgO)
= 7.97 g MgO
Oxygen
(7.46 g)(1 mol O2/32 g O2)(2 mol MgO/1 mol O2)(40.3 g MgO/1 mol MgO)
= 18.79 g MgO
This means that the amount of MgO produced is 7.97 g.
Answer:
<h3>
Explanation:</h3>
In Analytical Chemistry chromatography is widely used for the separation of samples.
- In thin layer chromatography, the mixture of components are separated on the basis of their polarity.
- The solvent solution(mobile phase) that we use are non polar & silica gel( TLC paper made of/stationary phase) are polar.
- Consider the mixture we have taken consist of two samples having large polar difference.
- Due to opposite nature of silica gel(polar) & solvent solution (non polar) the movement become easy & due to capillary action solvent solution rise to the top.
- The mixture of sample we have taken, the sample have less polarity have high peak or they travel more distance than that of more polar sample when they dipped into the solution.
In the given diagram, mixture of 8 samples are separated on the basis of their polarity, the distance travelled by solvent is 35 mm, distance travelled by sample 1 is 11 mm & similarly distance travelled by sample 2,3,4,5,6,7 are 15,31,4,22,25,33 in mm respectively.
Rf Value: Rf value is retention factor which tells about relative absorption of each sample & range of Rf value is 0-1.
Formula to calculate Rf value is
Now, solving for Rf value of sample 1
<em>Given:</em>
Distance moved by sample 1 = 11 mm
Distance movedby solvent = 35 mm
<em>To find:</em>
Rf value of sample 1 = ?
<em>Solution:</em>
Substituting the given data in above formula,
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