Answer: The molarity of the juice decreases.
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per kg of the solvent.
where,
n = moles of solute
= volume of solution in L
As volume of solution is inversely proportional to molarity, as water is added to juice, the volume of solution increases and thus the molarity decreases.
The moles remain fixed on adding water to juice.
Density = mass/volume
Density = 81g/0.9cm³
Density = 90g/cm³
: )
Answer:
6.023×10^23
Explanation:
Molecular mass= 2 (H)+1 (O) =2*1+1*16=2+16= 18 gm per 1gm molecule of water
Elements always exist as pair of atoms called molecules .
Explanation:-
- The material which has only one types of similar atoms called element .
- Ex:-Sodium,Carbon etc
In order to increase the strength of his electromagnet and pick up more thumbtacks Braddy should use two batteries instead of one. Using two batteries will increase the amount of current in the coils which will induce a higher electromagnetic field in the nail.
Another option would be to increase the number of coils of wire.
