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pashok25 [27]
3 years ago
11

If you know the mass of an object you can calculate its weight with the formula

Chemistry
1 answer:
Vikki [24]3 years ago
3 0
Answer: True

The formula of weight is w = mg, where m is the mass and g is the acceleration of gravity. If you want to calculate an object's weight, you need to know the two components: mass and gravity. 

You only need to know the mass of the object because the acceleration of gravity is ALWAYS (assuming the object is on Earth) 9.8 m/s^2. 
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Answer:

0.185moles

Explanation:

Given parameters:

Volume of O₂  = 49.8L

Unknown:

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Solution:

We can assume that the reaction takes place at standard temperature and pressure.

From this, we can find the number of moles of oxygen that reacted and extrapolate to that of sucrose.

Chemical equation;

           C₁₂H₂₂0₁₁  +  120₂   →   12CO₂   +   11H₂0

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Number of moles of oxygen gas = \frac{49.8}{22.4}   = 2.22moles

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       2.22 moles of oxygen gas will combine with \frac{2.22}{12}   = 0.185moles

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