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If an unknown solid substance is non polar will it matter if distilled or tap water is used to prepare a solution of this substance?
Wiki User
∙ 11y ago
If the substance is nonpolar it will not dissolve in either distilled or tap water. It will not make a solution with water. You will have to use a nonpolar solvent.
Wiki User
∙ 11y ago
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What is bromine and carbon tetrachloride?
Bromine in carbon tetrachloride is a brown-colored solution and used as a chemical test. When drops of bromine/carbon tetrachloride are added to a solution containing an unknown compound and the brown-colored bromine solution disappears, that means that the unknown compound contains carbon-carbon double bonds (since it absorbed the bromine solution). On the other hand, if the brown-colored bromine solution doesn't disappear then it means that no carbon double bonds are present. This is called a "Bromine Test."
The freezing point of a solution containing 4.12 g of unknown solute in 100 grams of camphor is 166.2 degrees C what is the freezing point depression?
f.p depression = (freezing point of pure solvent)-(freezing point of solution) -------> 178.4-166.2=12.2
How could you detect the presence of the chloride ion?
It Is determined in the flame test. A flame test is when u take the solution and put it on an object non flammable and hold it into the fire and the color of the fire will change. The test is constructed so that depending on the ions in the solution the flame with show whether It has a specific ion based on its distinctive Color.
15.00mL of 1.600M NaOH solution exactly neutralizes 20.00mL of an unknown monoprotic acid solution. Calculate the molarity of the acid solution. I got .686M... is this correct?
No, it's not correct. Liters*molarity = moles (0.015L)*(1.600moles/L) = 0.024 moles of NaOH One mole of NaOH would neutralize one mole of the MONOprotic acid, so: (0.024 moles of acid)/(0.020L) = 1.2M
An 8.192-mL sample of an unknown has a mass of 9.02gWhat is the density of the unknown?
1.10
An unknown substance is added to a solution and the pH increases The substance is best described as what?
The unknown substance would have to be a basic solution. At least more basic than the initial solution. The pH scale ranges from 0,Most acidic, to 14, Most Basic. If the pH of your solution increases when the unknown substance is added, then it would lead you to believe that the added substance is of a basic nature.
What is the purpose of adding an indicator to an unknown solution?
Indicators contain chemicals that will react with certain substances. If that substance is present in your unknown solution, a reaction will occur. If no reaction occurs, then that substance is not present in your solution
What is the purpose of dissolving unknown Fe in the acid?
The purpose is to prepare a sample solution for analysis.
An unknown substance placed into a solution caused a chemical reaction to take place faster and at a lower temperature than usual The substance was probably?
a catalyst
What is The process of adding a known amount of solution of known concentration to determine the concentration of another solution is called?
titration is the best method to determine the unknown concentration of the unknown. if ur known is a solid then you would have to used distilled water to ensure it is submerged before you titrate.
How do you test for monosaccarides?
You place Benedict's solution (blue solution) and the unknown substance (possibly containing monosaccarides) into a beaker and then heat it for approximately 5 minutes. If the substance contains monosaccarides, the solution will turn from blue to orange.
Is sodium hydroxide unknown solution?
Sodium hydroxide is not an unknown solution.
What is the unknown substance for A glass of milk is in the kitchen table for a week .?
what is the unknown substance of a glass of milk for a week
What is titrand?
There are answers elsewhere on the web. In summary, a titrand is the solution (or other substance) which one has in a conical flask or beaker into which the titrant is titrated from a burette.
A scientist has analyzed the chemicals that make of sample of an unknown substance Which chemicals would be the best indicator that the unknown substance is a plant?
Cellulose and starch
A scientist has analyzed the chemicals that make of a sample of an unknown substance. Which chemicals would be the best indicator that the unknown substance is a plant?
cellulose and starch
A scientist has analyzed the chemicals that make of a sample of an unknown substance Which chemicals would be the best indicator that the unknown substance is a plant?
Cellulose and starch
