What is the number of moles of hydrochloric acid that will be neutralized if there are 750 mg of aluminum hydroxide are consumed? What is the mass of water that will be produced?
Equation: #"Al"("OH")_3(s) + 3"HCl"(aq) -> "AlCl"_3(aq) + 3"H"_2"O"(l)#
This is what I think I know so far: I have to convert the 750 mg to g, which is .75 g. I believe that I have to find the number of moles in .75 g of Al(OH)3, and then multiply that number by 3, since the ratio of Al(OH)3 to HCl is 1:3.
Equation:
This is what I think I know so far: I have to convert the 750 mg to g, which is .75 g. I believe that I have to find the number of moles in .75 g of Al(OH)3, and then multiply that number by 3, since the ratio of Al(OH)3 to HCl is 1:3.
You are on the right track.
Indeed, your approach here will be to use the molar mass of aluminium hydroxide to convert the mass of the sample to moles and the mole ratio that exists between the two reactants to find the number of moles of hydrochloric acid consumed.
So you can say that you have
The answers are rounded to two sig figs, the number of sig figs you have for the mass of aluminium hydroxide.
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The number of moles of hydrochloric acid neutralized is 0.0125 moles. The mass of water produced is 4.5 grams.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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