Answer:
CaSO₃·2H₂O
Explanation:
Empirically => CaSO₃·nH₂O
%H₂O = n(H₂O)/f.wt. x 100%
23.1% = n(H₂O)100/Ca + S +3O + nH₂O
23.1 = n(18)·100/[40 + 32 + 3(16) + n(18)]
1800n = 23.1[40 + 32 + 3(16) + n(18)]
1800n = 924 + 739.2 + 1108.8 + 415.8n
1800n - 415.8n = 924 + 739.2 + 1108.8
1385n = 2772
n = 2772/1385 = 2
∴ numerical formula => CaSO₃·2H₂O
The type of fat that is described above is the trans fat. The trans fat is artificially made and these fat contains partially hydrogenated oils which is similar to the statement above. The reason why they are added to oil like vegetable oils so that there property could become solid.
Answer : The time taken for the reaction is, 28 s.
Explanation :
Expression for rate law for first order kinetics is given by :
where,
k = rate constant = 0.0632
t = time taken for the process = ?
= initial amount or concentration of the reactant = 1.28 M
= amount or concentration left time 't' =
Now put all the given values in above equation, we get:
Therefore, the time taken for the reaction is, 28 s.
Answer:
In chemistry, bond length is the equilibrium distance between the nuclei of two groups or atoms that are bonded to each other. Bond length is a property of a chemical bond between types of atoms. Bonds vary between atoms depending on the molecule that contains them.