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emmainna [20.7K]
3 years ago
8

What mass of Al contains the same number of atoms as 33.5g of Au

Chemistry
1 answer:
wel3 years ago
5 0
Stoich questions...

1) convert the grams of Au to moles
(33.5g)/(196.7g/mol)=___x___

2)find how many atoms are in that many moles by multiplying it by avogadro's number.

x(moles of Au)*(6.02*10^23)=?

3)now that you have found the number of atoms of gold, convert it to grams of aluminum by multiplying it by Avogadro's number and multiplying it by the atomic mass of aluminum.
( ? )(6.02*10^23)(26.98g/mol)= (mass of Al)

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Sugars are polar substances. Which action would make sugar more soluble in water?
Helen [10]

Answer the correct answer for the question is option a Increase in temperature of water.

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Hence this action would make sugar more soluble in water.

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Read the scenario. is this an example of weather, climate, or neither?
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Liquids and solids are referred to as “condensed phases” because the attractive forces are?
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4 years ago
Read 2 more answers
2KCIO3 ----------&gt; 2KCI + 302<br> How many moles of KCIO3 are needed to make 3.5 moles of KCL?
lyudmila [28]

Answer:

3.5 mol KClO3

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Given 3.50 moles of KCl as the target amount in the problem, used the coefficient of the balanced chemical reaction involved to determine the number of moles of potassium perchlorate needed.

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x mole of  KClO3 = 3.5 mol KClO3

3 0
3 years ago
Gasoline is a mixture of compounds. A gasoline sample was found to be 2.851% (by mass) octane (C₈H₁₈). 482.6 g of gasoline is co
Pani-rosa [81]

Answer:

See below.

Explanation:

The mass of octane in the sample of gasoline is 0.02851 * 482.6 =  13.759 g of octane.

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5 0
3 years ago
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