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murzikaleks [220]
3 years ago
6

Eva pumps up her bicycle tire until it has a gauge pressure of 413 kilopascals. If the surrounding air is at standard pressure,

what is the absolute pressure in the bicycle tire?
Chemistry
2 answers:
KIM [24]3 years ago
5 0

The tire pressure is the sum of gauge pressure and the standard pressure of atmospheric pressure

We know that the standard air pressure of surrounding = 101.325 kPa

The given gauge pressure = 413 kPascal

So the tire pressure =  101.325 kPa + 413 = 514.325 K Pa

We can also convert the given pascals to atmosphere or Torr or mmHg or bar

Anna11 [10]3 years ago
5 0

Answer:

514 kPa

Explanation:

Given that:-

Gauge pressure = 413 kPa

Also, considering atmospheric pressure = 101.325 kPa

The absolute pressure of the tire is equal to the sum of the gauge pressure and atmospheric pressure. So, the expression is:-

Absolute pressure = Gauge pressure + Atmospheric pressure

Applying the values in the above equation as:-

Absolute pressure = 413 kPa + (101.325 kPa = 514.325 kPa ≅ 514 kPa

<u>Thus, absolute pressure in bicycle tire is:- 514 kPa</u>

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The given question is incomplete, the complete question is:

Lead forms two compounds with oxygen. One contains 2.98g of lead and 0.461g of oxygen. The other contains 9.89g of lead and 0.763g of oxygen. For a given mass of oxygen, what is the lowest whole-number mass ratio of lead in the two compounds that combines with a given mass of oxygen?

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There is a need to find the mole ratio between lead and oxygen atoms in order to find the whole-number mass ratio of lead in the two compounds. In the first compound, the given mass of lead is 2.98 grams, the molar mass of lead is 207.2 gram per mole.  

The no. of moles can be determined by using the formula,  

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= 0.0477 moles

The ratio between the lead and oxygen in the compound II is, 0.0477 moles lead /0.0477 moles oxygen = 1:1

Hence, of the two compounds, the lowest ratio is found in the compound I, that is, 1:2.  

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