The only explanation, Rutherford suggested in 1911, was that the alpha particles were being scattered by a large amount of positive charge concentrated in a very small space at the center of the gold atom.
Answer:
0.608 mol/L compound is left after 8.93 sec
Explanation:
This is a first order reaction because unit of rate constant is (or )
For a first order reaction, integrated rate law is-
where is initial concentration of reactant, is concentration of reactant after t time and k is rate constant
Here = 0.652 mol/L, k = 0.00774 ) and t = 8.93 sec
So,
So,
Answer:
Option 3 - Grignard reagents are strong bases and option 4 - Grignard reagents are strong nucleophiles
Explanation:
The carbon in grignard reagent has a very strong carbanionic character which gives grignard reaction it's unique characteristic of a strong base and strong nucleophile.
⇒
The initial concentration of the unknown acid is 0.1900 M.
Explanation:
Titration is a chemical method of analysis to know the concentration and volume of the unknown chemical or analyte.
The formula for the titration is:
Macid x Vacid = Mbase x V base
The volume must be in litres. The volume is given in ml it should be divided with 1000 to obtain values in litre.
Data given are:
volume of acid= 10 ml 0.01 L
Molarity of the acid = ?
volume of the NaOH or base = 15.4 ml or 0.0154 L (equivalence point of the base)
molarity of the base = 0.1234 M
Applying the formula and putting the values, we get
Macid x 0.01 = 0.1234 x 0.0154
Macid = 0.1900 M
The weak acid is having molarity of 0.1900 M against the strong base with molarity of 0.1234M.