Answer : Volume of HCl ( in ml) is 10 ml.
Solution : Given, Concentration of NaOH = 0.1 mol/L
Volume of NaOH = 20 ml
Concentration of HCl = 0.2 mol/L
Volume of HCl = ?
Formula used : Moles = Volume × Concentration
In the reaction, we see that 1 mole of NaOH react with the 1 mole of HCl.
so,
Moles of NaOH = Moles of HCl
Moles of HCl = Moles of NaOH = Volume of NaOH ( in L) × Concentration of NaOH
Converstion ml into L : 1000 ml = 1 L
Moles of HCl = 
× 0.1
= 0.002 mol
Volume of HCl = Moles / Comcentration of HCl
= 
= 0.01 L
Volume of HCl (in ml) = 0.01 × 1000 = 10 ml
Answer:
-It occurs naturally in the Sun.
-It released a large amount of energy.
-It involves the joining of two atomic nuclei.
Answer:
<em>The correct option is A) Arrhenius</em>
Explanation:
According to the Arrhenius concept of acids and bases, an acid must produce H+ ions when it is present in a solution and the base must produce OH- ions when placed in a solution.
Ammonia does not contain OH- ions of its own when dissolved in water.
The reaction of ammonia dissolving is water can be written as:
NH3 + H2O ⇌ NH4+ + OH−
As we can see from the equation, ammonia does form OH- ions but it does not have OH- ions on its own.
Hence, according to the Arrhenius concept, NH3 is not a base.
