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geniusboy [140]
3 years ago
11

Why are fingertips wet with saliva before counting money?​

Chemistry
1 answer:
poizon [28]3 years ago
8 0

Answer:

It helps to get a better grip on the money.

Explanation:

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Assuming the volume is constant, if a gas has an
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672kP

Explanation:

Equate the initial pressure with respect the first temperature. The unknown pressure to the second temperature and you cross multiply

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True or false most materials occur in nature as pure substances
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false

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you rarely ever find a material as

a pure substance

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A glass of room temperature water is placed into the refrigerator.Which of the following statements are true?
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If we increase pressure on the gas what happens to the temperature?
irinina [24]

Answer: Temperature will Increase

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5 0
3 years ago
Gas is contained in a 9.00-L vessel at a temperature of 24.0°C and a pressure of 5.00 atm. (a) Determine the number of moles of
coldgirl [10]

Answer:

a. Moles in the vessel = 1.85 moles of the gas

b. 1.11x10²⁴ molecules are in the vessel

Explanation:

a.It is possible to determine moles of a gas using the general law of gases:

PV = nRT

<em>Where P is pressure: 5.00atm; V is volume = 9.00L; R is gas constant: 0.082atmL/molK; T is absolute temperature: 273.15K +24.0 = 297.15K</em>

<em />

Computing the values:

PV / RT = n

5.00atm* 9.00L / 0.082atmL/molK*297.15K = n

<h3>Moles in the vessel = 1.85 moles of the gas</h3><h3 />

b. With Avogadro's number we can convert moles of any compound to molecules thus:

Avogadro's number = 6.022x10²³ molecules / mole

1.85moles ₓ (6.022x10²³ molecules / mole) =

<h3>1.11x10²⁴ molecules are in the vessel</h3>
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4 years ago
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