Answer :
The correct answer is due to incorrect position of thermometer .
Distillation is process of separating two volatile liquids on the basis of their boiling points .In involves the following set up ( shown in image )
Since the Boiling point is found is 116-117 C which is near to 124 C , also the purity was checked and thermometer was calibrated .
So the only error could be possible is position of thermometer .
The position of bulb of thermometer is very important to get an accurate reading of boiling point .The vapor so formed should touch the side walls of bulb as soon as they are formed .
May be the bulb of thermometer was kept far from the vapors formed by liquid so, s<u>ome of the vapor before reaching to bulb start condensing and their Temperature decreases </u>.
Hence , the temperature shown by thermometer was decrease than actual boiling point due to incorrect position of thermometer.
According to the Bronsted-Lowry concept, acids are proton donors and bases are proton acceptors. In this reaction, NH3 gains protons and H2O loses protons. NH3 is therefore a Bronsted-Lowry base.
NH3 + H2O ⇒ NH4+ + OH-
Base Acid Conjugate acid Conjugate base
A basic solution is formed when ammonia dissolves in water. A small amount of dissolved ammonia reacts with water to form ammonium hydroxide which dissociates into ammonium and hydroxide ions. All these processes are reversible. Hydrogen bonds are weak bonds that are easily broken to form H+ and OH ions. This reaction also has multiple reactants, but only one product.
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Answer:
s = d÷ t
Explanation:
Where s means speed, d means distance and t means time
Answer:
3. crystal habit and cleavage.
Explanation:
Crystal habit is a distinctive characteristic which is shown in its general shape, crystallographic forms, how developed each form is.
Cleavage is the ability of a mineral to break in smooth planes parallel to zones of weak bonding. Cleavage in three directions at right angles (90o). Cubic cleavage. Cleavage in three directions not at right angles (120o and 60o).