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romanna [79]
4 years ago
7

Calculate the number of moles in 2.4g of carbon

Chemistry
1 answer:
Anna71 [15]4 years ago
6 0

Answer:

0.2

Explanation:

1. First, figure out the molar mass of said element(s).

The molar mass of carbon is 12.0107. Whether you round this or leave it as is depends on your's and/or your teacher's personal preference.

2. Next, convert grams to moles by dividing the initial mass of carbon by the molar mass. Round if neccecary.

2.4g ÷ 12.0107g/mol = 0.2mol

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Born and Meyer developed a quantitative theory of bonding in ionic crystals in which the potential energy of the system is given
blsea [12.9K]

Answer:

E = NA/R^n - N alpha e^2/ (4 piEoR')

Explanation:

Where N = number of positive ion pairs

e= magnitude

R= interatomic distance

n = the Born exponent

6 0
3 years ago
Read 2 more answers
Convert the following numbers of calories or
muminat

Answer:

a. joules=32823480 , kilojoules=32823.48

b. joules=1979868.8 , kilojoules=1979.8688

c. joules=260002.128 , kilojoules=260.002128

d. joules=180012416 , kilojoules=180012.416

Explanation:

calories to kilo joules=multiply the energy value by 4.184

calories to joules=multiply the energy value by 4184

kilo calories to joules=multiply the energy value by 4184

kilo calories to kilo joules=multiply the energy value by 4.184

7 0
3 years ago
How many grams of ammonia (NH3) are produced in the haber process when using 4.04 g of hydrogen gas?
iren2701 [21]

Answer:

b 204

Explanation:

it is right

7 0
3 years ago
g Tom's roommate Bob spilled crystal violet solution on his lab coat, and Tom offers to use some lye (sodium hydroxide solution)
irina [24]

Answer:

Tom is correct. The rate of reaction of Crystal violet and NaOH is first order with respect to NaOH, hence, a higher concentration of NaOH corresponds to a higher rate of reaction; a faster reaction.

This means the speed of cleaning depends on the concentration of the lye used.

Explanation:

The reaction between Crystal violet and NaOH, represented as

CV⁺ + OH⁻ → CVOH

It is a reaction that is know to turn the violet colour of the crystal violet colourless.

The rate of the reaction is also known to be second order; first order with respect to Crystal violet and first order with respect to NaOH.

This means that the rate of reaction is directly proportional to the concentration of NaOH provided all other parameters such as the rate constant and the concentration of Crystal violet are constant.

Hence, the reaction becomes faster with an increased concentration of NaOH.

So, Tom is right, concentrated lye solution would remove the stain faster.

Bob is wrong.

Hope this Helps!!!

4 0
3 years ago
A 575.4575.4 mL sample of carbon dioxide was heated to 377377 K. If the volume of the carbon dioxide sample at 377377 K is 824.7
Margaret [11]

Answer:

263 K

Explanation:

Assuming ideal behaviour and constant pressure, we can solve this problem by using Charles' law, which states that at constant pressure:

  • T₁V₂=T₂V₁

In this case:

  • T₁ = ?
  • V₂ = 824.7 mL
  • T₂ = 377 K
  • V₁ = 575.45 mL

We <u>input the data</u>:

  • T₁ * 824.7 mL = 377 K * 575.45 mL

And <u>solve for T₁</u>:

  • T₁ = 263 K
3 0
3 years ago
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