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Aleks [24]
3 years ago
14

2.91 moles of aluminum are how many grams(with work)

Chemistry
2 answers:
e-lub [12.9K]3 years ago
6 0
It will be 78.51627558 bec one gram of Al equal 0.037062379468509
pentagon [3]3 years ago
3 0
2.91 mol Al * ( 26.982 g Al / 1 mol Al) = 78.518 grams
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An element has a half-life of 30 years. if 1.0 mg of this element decays over a period of 90 years, how many mg of this element
labwork [276]

Answer:

144.6

Explanation:

6 0
3 years ago
1. Why is it necessary to equalize the pressure(i.e, have the water level the same in each tube) before taking a volume reading?
Anna11 [10]

Answer:

If you contact water with a gas at a certain temperature and (partial) pressure, the concentration of the gas in the water will reach an equilibrium ('saturation') according to Henry's law.

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3 0
3 years ago
A solution of rubbing alcohol is 68.6 % (v/v) isopropanol in water. How many milliliters of isopropanol are in a 88.2 mL sample
KonstantinChe [14]


From the information given, the total volume of  rubbing alcohol is 88.2 ml

68.6 % of this volume is isopropanol. 

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68.6/100 x 88.2 → 0.686 × 88.2 = 60.505 ml

The volume of isopropanol is 60.5 ml.

Volume of water will be 88.20 - 60.5 = 27.7 ml

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Adding 60.5 ml of isopropanol to 27.7 ml of water to make up 88.2 ml will give 68.6 % v/v isopropanol to water  solution.



8 0
3 years ago
What do all nickel atoms have in common
Mama L [17]
All nickel atoms would have the same number of protons or atomic number.
4 0
3 years ago
A solution that has a large amount of dissolved solute is called
kvasek [131]

Answer: It is an unsaturated solution

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6 0
3 years ago
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