Answer:
%age Yield = 66.05 %
Explanation:
In order to check the efficiency of a reaction the %age is calculated so that it can be concluded that either the conditions provided for certain reactions are favourable or not because at large scales reactions with greater %age yields are favoured as it results in high product quantity and hence, greater economical advantages.
The percent yield is given as;
%age Yield = Actual Yield / Theoretical Yield × 100
Putting values,
%age Yield = 253 g / 383 g × 100
%age Yield = 66.05 %
Hence, for the given reaction the success of the reaction is only 65% hence, steps can be made to improve this yield by modifying the reaction conditions.
Answer:
The overall change in the oxidation number of sulfur is 8.
Explanation:
Oxidation number is defined number assigned to an element in reaction which represent the loss or gain of electrons by an atom of an element in a compound.
In 
let the oxidation number of S in hydrogen sulfide be x.
x = -2
In 
let the oxidation number of S in sulfate ion be x.
x = -2 + 8 = +6
The overall change in the oxidation number of sulfur :
= [+6] - [-2] = 8
Answer:
Erlenmeyer flasks have a narrow neck over a conical base, while beakers are basically large open-mouthed glass jars with a lip and spout for pouring. Graduated cylinders are tall cylinders with a spout to pour liquids; they have hash marks on the side to measure the volume of their contents.
Explanation:
hope it helps you alot
Answer:
covalent bond
Explanation:
Between atoms of non-metals covalent bond is formed. Atoms of non-metals have close values of electronegativities, so electrons, that are forming bond, shared between atoms, and may be just a little moved to the side of non-metal that have more electronegativity.
