It is O with a little 2 subscript. it represents two atoms of oxygen.
Answer:
90.5 g
Explanation:
we know 1 mole of thyrosine = 181g
so 0.5 mole thyrosine =181*0.5
=90.5g
Answer:
Explanation:
Hello,
By applying the Dalton's law, we can compute the partial pressure of the helium has:
Now, solving for the partial pressure of the helium gas we get:
On the other hand, the mass of the helium gas is computed via the ideal gas equation in terms of the helium's mass:
Best regards.
Answer:
The C4+ ion has the smallest ionic radius
Explanation:
In the periodic table, the size of an atom increases on going downwards in a group.
On the other hand, in a period, size decreases on going from left to right
The size of cation is smaller than its parent atom.
Lithium-ion (Li+) is the most left so it has the biggest radius.
More to the right ( this means a smaller ionic radius) , we have Berylium-ion (Be2+).
More to the right, so smaller than Be2+, we have B3+
The ion the most to the right, we have C4+
The C4+ ion has the smallest ionic radius
Li+ > Be2+ > Be3+ > C4+
