<u>Answer:</u> The amount of sodium thiosulfate required is 
moles
<u>Explanation:</u>
Moles of 
solution given = 0.0000524 moles
The chemical equation for the reaction of potassium iodate and sodium thiosulfate follows:
By Stoichiometry of the reaction:
2 moles of potassium iodate reacts with 1 mole of sodium thiosulfate
So, 0.0000524 moles of potassium iodate will react with = 
of sodium thiosulfate
Hence, the amount of sodium thiosulfate required is moles
Answer:
Ionic bonding is the attraction between positively- and negatively-charged ions. These oppositely charged ions attract each other to form ionic networks (or lattices). Electrostatics explains why this happens: opposite charges attract and like charges repel.
Explanation:
Answer:
2.69 x 10²³ atoms
Explanation:
Given parameters:
Volume of sea water = 2.06mL
number of moles of gold = 0.446moles
unknown:
Number of atoms in the sea water
Solution:
The mole is a convenient unit of measuring quantities of particles. In a mole we have 6.02 x 10²³particles.
The mole can be defined as the amount of a substance contained in Avogadro's number of particles which is 6.02 x 10²³particles.
Here, the particles we want to determine is the number of atoms:
Number of atoms is given as:
Number of gold atoms = number of moles of gold x 6.02 x 10²³
Number of gold atoms = 0.446 x 6.02 x 10²³ = 2.69 x 10²³ atoms
Answer:
Gold.
Explanation:
Because gold has a lower specific heat than aluminium.
