Answer:
c. 0.30
Explanation:
One C atom has a mass of 12.0 u and one Ar atom has a mass of 40.0 u.
Let’s assume that there are <em>n</em> atoms of C and <em>n</em> atoms of Ar. Then
Mass of <em>n</em> C atoms = <em>n</em> × 12.0
Mass of <em>n</em> C atoms = 12.0<em>n</em> u
Mass of <em>n</em> Ar atoms = <em>n</em> × 40.0
Mass of <em>n</em> Ar atoms = 40.0<em>n</em> u
ratio = mass of C/mass of Ar
ratio = 12.0<em>n</em>/40.0<em>n
</em>
ratio = 0.300
Answer:The final volume of nitrogen gas will be 13 L. Nitrogen gas was collected in the plastic bag.
Explanation:
Volume of the storage cylinder:
Volume of the cylinder = 
Diameter of the cylinder (d)= 6.6 cm
So, radius of the cylinder 
Height of the cylinder = 26 cm
Volume of the cylinder=
Pressure of the 
gas in a cylinder =
The cylinder is opened and the gas allowed to escape into a large empty plastic bag. So, now the value of the pressure
will become equal to atmospheric pressure that 1 atm .
Volume of gas in plastic bag 
will be given by the expression of Boyle's law
On substituting the values:
The final volume of nitrogen gas will be 13.24 L when rounded of to two significant figures will be 13 L. Nitrogen gas was collected in the plastic bag.
Answer:
As a compound maybe, I'm not quite sure.
sorry and good luck.
Answer:
0.074M is concentration of the HNO₃ solution
Explanation:
The reaction of neutralization of nitric acid, HNO₃ with NaOH is:
HNO₃ + NaOH → H₂O + NaNO₃
<em>Where 1 mole of nitric acid reacts per mole of NaOH</em>
<em />
Based on the chemical reaction, the moles of NaOH at equivalence point are equal to moles of HNO₃ presents in the solution. With the moles and the volume we can find molarity as follows:
<em>Moles NaOH = Moles HNO₃:</em>
0.14L * (0.2mol NaOH / L) = 0.028mol NaOH = 0.028mol HNO₃
<em>Molarity:</em>
0.028mol HNO₃ / 0.38L =
<h3>0.074M is concentration of the HNO₃ solution</h3>
