Answer:
<h2>Density = 1.67 g/mL</h2>Explanation:
The density of a substance can be found by using the formula
From the question
mass = 50 g
volume = 30 mL
Substitute the values into the above formula and solve for the density
That's
Wr have the final answer as
<h3>Density = 1.67 g/mL</h3>Hope this helps you
Explanation:
To convert moles to particles or grams to particles, let us have a firm understanding of what a mole is.
A mole is the unit of measuring quantity of particles.
It is the amount of substance that contains the Avogadro's number of particles.
The particle can be atoms, molecules, formula units, electrons, protons, neutrons, etc.
So, to convert from moles to particles;
1 mole of a substance contains 6.02 x 10²³ particles
To convert from grams to particles;
First convert to moles;
number of moles =
So, 1 mole of a substance contains 6.02 x 10²³ particles
Answer:
emf generated by cell is 2.32 V
Explanation:
Oxidation:
Reduction:
---------------------------------------------------------------------------------
Overall:
Nernst equation for this cell reaction at -
where n is number of electrons exchanged during cell reaction, is standard cell emf ,
is cell emf ,
is concentration of
and
is concentration of
Plug in all the given values in the above equation -
So,