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Ulleksa [173]
3 years ago
6

Complete the complex dimensional analysis problem to determine the price of one atom of aluminum. A 20cm x 20cm square of alumin

um had a mass of 1.50g. A box of aluminum cost $1.29 and the area of foil in the box is 2.33 m^2. What is the cost of one atom of aluminum?
Chemistry
1 answer:
mixer [17]3 years ago
7 0

$8.09

Because you multiply and subtract to get the answer

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What is the molarity if 2.00 liters containing 49.0 grams of sodium carbonate [Na2CO3)?
yKpoI14uk [10]

Answer: The molarity of solution is 0.231 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

Molarity=\frac{n}{V_s}

where,

n = moles of solute

V_s = volume of solution in L

Molar mass of Na_2CO_3 = 2\times 22.99+1\times 12.01+3\times 16.00=105.99

moles of Na_2CO_3 = \frac{\text {given mass}}{\text {Molar mass}}=\frac{49.0g}{105.99g/mol}=0.462mol

Now put all the given values in the formula of molality, we get

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Molarity=0.231M

Therefore, the molarity of solution is 0.231 M

5 0
3 years ago
How many times more massive is an oxygen atom than a hydrogen atom?
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