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deff fn [24]
4 years ago
9

Explain how gas pressure is measured

Chemistry
2 answers:
Elenna [48]4 years ago
7 0
Gas pressure is measured in mmHg with a barometer
Scorpion4ik [409]4 years ago
6 0

Answer:

A simple device to help measure gas pressure is Called a U-tube manometer.

Explanation: It usually containes water or mercury in a U shaped tube.

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What is the total pressure in units of kPa in a 7.85 L container that contains 4.45 moles of N2 and 2.45 moles of O2 at a temper
IgorC [24]

Answer:

Total pressure = 22.15 atm

Explanation:

Given data:

Total pressure = ?

Volume of container = 7.85 L

Number of moles of N₂ = 4.45 mol

Number of moles of O₂ = 2.45 mol

Temperature = 307 K

Solution:

Pressure of N₂:

PV = nRT

P = nRT/V

P = 4.45 mol ×0.0821 atm.L/mol.K ×307K / 7.85L

P = 112.16 atm.L/7.85 L

P = 14.28 atm

Pressure of O₂:

PV = nRT

P = nRT/V

P = 2.45 mol ×0.0821 atm.L/mol.K ×307K / 7.85L

P = 61.75 atm.L/7.85 L

P = 7.87 atm

Total pressure = P(N₂) + P(O₂)

Total pressure = P( 14.28 atm)  +  P( 7.87 atm)

Total pressure = 22.15 atm

6 0
3 years ago
The catalyzed reaction is first order in [ce4+] and first order in [mn2+]. which of the steps in the catalyzed mechanism is rate
Dimas [21]

Answer:

The answer is Ce^4+ (aq) + Mn^2+ (aq) ==> Ce^3+ (aq) + Mn^3+ (aq)

Explanation:

The reaction is first order with respect to Ce^4+ and first order with respect to Mn^2+ below.

Ce^4+ (aq) + Mn^2+ (aq) ==> Ce^3+ (aq) + Mn^3+ (aq)

The rate calculation,

Ce^4+ (aq) + Mn^2+ (aq) ==> Ce^3+ (aq) + Mn^3+ (aq)  

This is the catalyzed reaction.

4 0
3 years ago
20 POINTS Use the problem below to answer the question: 34 grams of carbon react with an unlimited amount of H2O. The reaction i
Simora [160]

The carbon would be your answer hope this helps

4 0
3 years ago
Hay particulas mas pequeñas que el atomo?
svp [43]

Answer:

Una partícula subatómica es aquella que es más pequeña que el átomo. Puede ser una partícula elemental o una compuesta, a su vez, por otras partículas, como los quarks que componen los protones y los neutrones. ... De esta manera, se han descubierto docenas de partículas subatómicas, y se teorizan cientos de otras más.

5 0
3 years ago
Dot and cross diagram for ionic compounds
lubasha [3.4K]
You need to be able to draw dot-and-cross diagrams to show the ions in some common ionic compounds.
8 0
3 years ago
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