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Daniel [21]
3 years ago
6

What pressure will be exerted by 25 g of CO2 at temperature of 25°C and a volume of .50 L?

Chemistry
1 answer:
Grace [21]3 years ago
4 0

Answer:

P = 27.9 atm

Explanation:

Given data:

Mass of CO₂ = 25 g

Temperature = 25°C (25+273.15 K = 298.15 K)

Volume of gas = 0.50 L

Pressure of gas = ?

Solution:

Firs of all we will calculate the number of moles of gas,

Number of moles = mass/molar mass

Number of moles = 25 g/ 44 g/mol

Number of moles = 0.57 mol

Pressure of gas :

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

P × 0.50 L = 0.57 mol × 0.0821 atm.L/ mol.K  × 298.15 K

P = 13.95 atm.L/ 0.50 L

P = 27.9 atm

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Answer:

It increases when a catalyst is added.

Explanation:

The following factors control reaction rates:

1. Nature of reactants

2. Concentration of the reactants or pressure of gaseous

3. Temperature

4. Presence of catalyst

5. Sunlight

The addition of a foreign body to a reaction may influence the speed of the reaction. If a foreign body increases the rate of reaction, it is a called a positive catalyst or simply a catalyst. A negative catalyst is called an inhibitor.

A catalyst is a substance that is introduced into a chemical reaction to change the rate of the reaction without itself being affected at the end of the reaction.

Catalysts helps to reduce reaction time of many slow reactions. Most catalysts are specific in their actions and works on certain reactions or substrates.

Temperature change has a considerable effect on reaction rates since temperature is directly proportional to the average kinetic energy of reacting particles. Generally, reaction rate varies as temperature directly.

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3 years ago
Is backbonding is possible in BF4- ? If no then why?
Rudik [331]

Answer:

No, because Flourine can only form 1 bond, thus backbonding is not obtainable

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What would be the result on the Insect population if the Bats and Mice were removed?
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2 years ago
Many people in South America are subsistence farmers. Subsistence farming is...
galben [10]

growing only enough crops for food to fed the family

Explanation:

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2 years ago
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For a different reaction, the plot of the reciprocal of concentration versus time in seconds was linear with a slope of 0.056 M-
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Answer:

C_t=0.165M

Explanation:

From the question we are told that:

Slope K=0.056 M-1 s -1

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\frac{1}{C}_t=kt+\frac{1}{C}_0

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