Answer:
5 litres of solution are requried
Explanation:
Given that the typical units of
concentration
are
m
o
l
⋅
L
−
1
, to get
concentration
or
amount of moles
or
volume of solution
we just have to take the appropriate product or quotient.
We want
1.0
⋅
m
o
l
N
a
O
H
:
this the product
Volume of solution
×
Concentration
.
So we need the quotient:
Moles of solute
Concentration
=
1.0
⋅
m
o
l
0.2
⋅
m
o
l
⋅
L
−
1
=
5
⋅
L
.
(i.e.
1
1
⋅
L
−
1
=
1
⋅
L
)
Note that we go to such trouble in including the units in these calculations as an extra check on our arithmetic. Sometimes you ask yourself should I divide or should I multiply. Dimensional analysis answers our question. We wanted an answer in
litres
, and we got one. This persuades us that we did the calculation right.
Answer:
Ba(NO₃)₂ (aq) + H₂SO₄ (aq) → BaSO₄ (s) + 2HNO₃ (aq)
Explanation:
The equation bellow can be explained by the dissociation of each specie:
Ba(NO₃)₂ (aq) → Ba²⁺ (aq) + 2NO₃⁻ (aq)
H₂SO₄ (aq) → 2H⁺ (aq) + SO₄²⁻ (aq)
The reaction will lead to the formation of solid barium sulfate and nitric acid.
With the lowest atomic numbers <span>with the highest atomic numbers </span>
<span>that match their Latin names </span><span>with atomic symbols that match their modern names </span>
<h2>
Answer:</h2>
We will use dimensional analysis to solve this.
We will need the molar mass of barium, which is 137.33 g/mol.
50g × 
= .36 mol Ba
There are <em>.36 moles of barium</em> in 50g of barium
Answer:
prototype
Explanation:
don't go right to designing the original thing
