Scenario Three: Carbon dioxide emissions increase Set the carbon dioxide emissions
Set the time step size to 10 years.
Select the step forward button once.
Increase the carbon dioxide emissions by 0.2 and press step forward.
Continue stepping forward once, increasing the carbon emissions each time, until you reach 2110.
Record the data in the table below.
Year
Carbon Emissions (gigatons)
Temperature (Fahrenheit)
1960
4.2
57.2
1970
5.8
57
1980
6.2
57.4
1990
7.8
57.6
2000
8
58
2010
9.8
58
Increase carbon dioxide emissions by 0.2 for each step forward for the rest of scenario three.
2020
2030
2040
2050
2060
2070
2080
2090
2100
2110
a. 0.154 moles = 2.78x10²³ ions
b. 2.18x10⁻⁴ moles = 6.56x10²⁰ ions
c. 1.77x10²² ions = 0.0147 moles
Explanation:
The multiplication of volume of solution in liters times molarity gives the moles of solute.
a. Moles MgCl₂:
88mL = 0.088L * (1.75mol / L) = 0.154 moles MgCl₂
Uaing Avogadro's number:
0.154mol *(6.022x10²³ molecules / 1 mol) = 9.27x10²² molecules.
As 1 molecule of MgCl₂ contains 3 ions:
Ions = 2.78x10²³
b. Moles Al₂(SO₄)₃:
Aluminium sulfate has a molar mass of 324.15g/mol:
0.321L * (0.22g Al₂(SO₄)₃ / L) * (1mol / 324.15g) = 2.18x10⁻⁴ moles.
1 molecule contains 5 ions:
2.18x10⁻⁴ moles *(6.022x10²³ molecules / 1 mol) * 5 = 6.56x10²⁰ ions.
c. 8.83x10²¹ formula units of CsNO₃ = Number of molecules. Ions are:
8.83x10²¹ * 2 = 1.77x10²² ions
And moles are:
8.83x10²¹ Formula units * (1mol / 6.022x10²³) = 0.0147 moles
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