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3 years ago

Which set of numbers gives the correct possible values of l for n = 3?

Chemistry

2 answers:

zavuch27 [327]3 years ago

7 0

The correct answer on engenuit.y is

Sorry im late but i hope this helps anyone else

Free_Kalibri [48]3 years ago

3 0

0 1 2 3
0 and 3 is 3
1 and 2 is 3

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Calculate the pH of a 3.58x10^-9 M Nitric acid (a strong acid) solution

lubasha [3.4K]

Answer:

pH= 8.45

Explanation:

when working with strong accids pH = -log(Concentration)

so -log(3.58e-9) = 8.446

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3 years ago

You add 28 grams of carbon. You find the actual yield to be 181.2 grams of CO2. What is the percent yield of CO2?

liraira [26]

Answer:

79.14%

Explanation:

Given the equation : 2Fe2O3 + 3C 4Fe + 3C02

The theoretical yield of CO2 ; is 102.6g

Actual yield = 81.2 gram

Percentage yield = (actual yield / theoretical yield) * 100%

Percentage yield = (81.2 / 102.6) * 100%

Percentage yield = 0.7914230 * 100%

Percentage yield = 79.14%

Hence, tbe percentage yield of CO2 is 79.14%

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3 years ago

What is the scientists next step if he concludes that his hypothesis is false?

My name is Ann [436]

Finish their experiment and conclusions, then remake their observations and reform a new hypothesis and procedure, and repeat until they are correct

4 0

3 years ago

Calculate the mass of nitrogen dissolved at room temperature in an 86.0 L home aquarium. Assume a total pressure of 1.0 atm and

Andrew [12]

Answer:

Mass of nitrogen gas dissolved= 1.1732 grams

Explanation:

According to Dalton's Law of partial pressure:

$P_{N_2}=P_{Total}X_{N_2}$

Where,

$P_{N_2}$ is the partial pressure of nitrogen

$P_{Total}$ is the Total pressure

$X_{N_2}$ is the mole fraction of nitrogen

Given :

Total pressure = 1.0 atm

Mole fraction of nitrogen = 0.78

Partial pressure of nitrogen:

$P_{N_2}=1.0\times 0.78 atm$

Partial pressure of nitrogen = 0.78 atm

According to Henry's law:

Solubility = Henry's constant (k)×Partial pressure

k = 6.26×10⁻⁴ mol/L-atm

Thus,

Solubility of nitrogen = 6.26×10⁻⁴ mol/L-atm×0.78 atm = 4.8828×10⁻⁴ mol/L

Given: Volume = 86.0 L

So, Moles of nitrogen gas dissolved:

Moles = Solubility (Concentration dissolved)×Volume

Moles = 4.8828×10⁻⁴ mol/L×86.0 L = 0.0419 moles

Also,

$moles=\frac{Mass(m)}{Molar\ mass (M)}$

$Mass\ of\ nitrogen=moles\times {Molar\ mass}$

Molar mass of nitrogen gas = 28 g/mol

So,

Mass of nitrogen gas dissolved = 0.0419 moles×28 g/mol = 1.1732 grams

6 0

4 years ago

The measure of the attraction that an atom has for electrons involved in chemical bonds is known as: ? electron affinity / radio

swat32

The answer is the last option. Electronegativity is the measure of the attraction that an atom has for electrons involved in chemical bonds. It relates to covalent bonds where electrons are shared. The Pauling scale is the most used.

5 0

3 years ago

Read 2 more answers