Answer:
0.0447 moles of Aluminum
Explanation:
Break this down to an ionic equation (which may not exist in the real world but it will give you the mol ratios).
Al2(SO4)3 ===> 2Al^(+3) + 3 SO4^(-2)
Now write the equation showing the actual number of moles of SO4^(-2) present. Indicate the Al moles with an x
Al2(SO4)3 ===> 2Al^(+3) + 3 SO4^(-2)
x 0.0670
Now set up a proportion
2/x = 3/0.0670 Cross multiply
2*0.0670 = 3x Simplify the left
0.134 = 3x Divide both sides by 3
0.134/3 = 3x/3 Divide
0.0447 = x
there are 0.0447 moles of Aluminum
Answer:
A)He, Ne, and Ar
Explanation:
I believe its this one. Sorry if its wrong. Remember that 8 electrons are in the outermost energy level .
The answer to this question is -5
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The correct answer is false. It is not chemical equilibrium when the forward rate of reaction is greater than the reverse rate of reaction. Instead, these two rates should be equal to achieve chemical equilibrium.