0.33g
Explanation:
Given parameters:
Diameter of cylinder = 0.234cm
length = 2.697cm
unknown:
mass of the cylinder = ?
Solution:
To solve this problem, we know that density of the aluminium can be determined and it is a constant.
Density is the mass per unit volume of a substance
Density = 
Mass of the cylinder = density x volume
To calculate the volume of cylinder;
Volume = π r² h
radius of the cylinder = 
= 0.12cm
Volume = 3.142 x 0.12² x 2.697 = 0.12cm³
Density of aluminium = 2.7g/cm³
Mass of the cylinder = 0.12 x 2.7 = 0.33g
learn more:
Density brainly.com/question/2690299
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Answer: The movement of heat from a warmer object to a cooler one is called heat transfer
Explanation:
2 moles of sodium hydroxide will be needed.
<h3><u>Explanation</u>:</h3>
Sodium hydroxide is a compound which is a base and nitric acid is the acid. The formula of the nitric acid is HNO3 and that of sodium hydroxide is NaOH.
The reaction between them are
NaOH +HNO3 =NaNO3 +H2O.
So here we can see that 1 mole of sodium hydroxide reacts with 1 mole of nitric acid to produce 1 mole of sodium nitrate and 1 mole of water.
So for 2 moles of nitric acid, 2 moles of sodium hydroxide will be required.
Answer:
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Explanation:
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Answer:
116.6 lbs
Explanation:
There are 2.2 lbs per Kilogram of weight - and likewise 0.454 Kilograms per pound - but instead of dividing by .454 I multiplied the weight by 2.2 to get 116.6 pounds (of course you could round up and get 117 but 116.6 is a little more accurate).
