\(Zn + H_2 SO_4 → ZnSO_4 + H_2\)
in the...
\(Zn + H_2 SO_4 → ZnSO_4 + H_2\)
in the above reaction, how much zinc will be left undissolved if 2.00g of zinc is treated with 10cm^3 of 1.0 M of \(H_2SO_4\)?
[Zn =65, s = 32, O = 16, H = 1]
1.35g
1.00g
0.70g
0.65g
0.00g
Correct answer is A
\(Zn + H_2 SO_4 → ZnSO_4 + H_2\)
1 mole of Zn = 1 mole \(H_2SO_4\)
no of moles of \(H_2SO_4\) = C X V = 1 X 10/1000 = 0.01moles.
0.01mole \(H_2SO_4\) = 0.01 mole Zn
mass of Zn = 0.01 x 65(given) = 0.65g
therefore, the mass of undissolved Zn = 2.00(given) - 0.65 = 1.35g.
What is the chemical symbol for Nihonium? ...
Which of the following reactions does not take place in the smelting of iron in a blast furnace? ...
Which of the following statements is correct about sodium chloride in the solid state? ...
The electronic configuration of an element is 1S\(^2\) 2S\(^2\) 2P\(^6\) 3S\(^2\)&nbs...
The number of particles in one mole of a chemical compound is the ...
A solid that absorbs water from he atmosphere and forms an aqueous solution is? ...
Which of the following processes is used in food preservation in an industry? ...
What is the IUPAC name for the following compound? HC\(\equiv\)CCH\(_{3}\)...
In the periodic table all elements within the same group have the same ...