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3 years ago

Name the following amide: O CH3 CH2CH2CH2CN CH3

Chemistry

1 answer:

juin [17]3 years ago

4 0

Answer: Pentane

Explanation: According to the IUPAC(International Union of Pure and Applied Chemistry) the name of this compound will be pentane. This compound belongs to the alkane category, which has single bond between the carbon atoms. This naming is done on the basis of the number of carbon atoms and the nature of the chemical bond between the carbon atoms.

Word roots are selected based on the number of carbon atoms

1 C atom = Meth

2 C atom = Eth

3 C atom = Prop

4 C atom = But

5 C atom = Pent

6 C atom = Hex

7 C atom = Hept

8 C atom = Oct

9 C atom = Non

10 C atom = Dec

Suffixes are added based on the nature of chemical bond between the carbon atoms.

Word root + suffix (here: ane)

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katrin [286]

Answer:

The concentration is 0.025 M.

Explanation:

We will use beer law to find the concentration.

A = εmCl

This law relate to the linear equation Y = mx + b in following way,

A = y = absorbance

m = εm = slope or extinction coefficient in beer law.

x = c = concentration

and l is length which is 1 cm

Thus equation can be written as,

A = εmc + b

A - b / εm = c

in order to find the concentration we will abstract the intercept from absorbance and then divide it by the slop.

0.02 - 0.011 / 0.36 = c

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c = 0.025 M.

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3 years ago

What is calorimetry

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Answer:

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Explanation:

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4 years ago

Part B When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 22.8 g of carbon were burned in the pres

aksik [14]

<u>Answer:</u> The amount of carbon dioxide gas produced in the reaction is 83.6 grams

<u>Explanation:</u>

As, some amount of oxygen gas is left after the reaction is completed. So, it is present in excess and is considered as an excess reagent.

Thus, carbon is considered as a limiting reagent because it limits the formation of product.

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ .....(1)

Given mass of carbon = 22.8 g

Molar mass of carbon = 12 g/mol

Putting values in equation 1, we get:

$\text{Moles of carbon}=\frac{22.8g}{12g/mol}=1.9mol$

The chemical equation for the reaction of carbon and oxygen gas follows:

$C+O_2\rightarrow CO_2$

By Stoichiometry of the reaction:

1 mole of carbon produces 1 mole of carbon dioxide gas

So, 1.9 moles of carbon will produce = $\frac{1}{1}\times 1.9=1.9moles$ of carbon dioxide gas

Now, calculating the mass of carbon dioxide from equation 1, we get:

Molar mass of carbon dioxide = 44 g/mol

Moles of carbon dioxide = 1.9 moles

Putting values in equation 1, we get:

$1.9mol=\frac{\text{Mass of carbon dioxide}}{44g/mol}\\\\\text{Mass of carbon dioxide}=(1.9mol\times 44g/mol)=83.6g$

Hence, the amount of carbon dioxide gas produced in the reaction is 83.6 grams

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3 years ago

H2, N2, O2 molecules. . . A)must be polar. must be nonpolar. . B)can be polar or nonpolar depending on geometric . C)configurati

LenKa [72]

Answer: The correct option is A.

Explanation: The given molecules are the molecules of same element.

These molecules are considered as diatomic species.

Polar molecules are the molecules in which some polarity is present in the bond. These molecules are formed when there is some difference in the electronegativities of the elements. Example: HCl

Non-polar molecules are the molecules where no polarity is present in the bond. These molecules are formed when there is no difference in the electronegativities of the elements. Example: $H_2, O_2$

The given molecules are non-polar in nature.

Hence, these molecules must be non-polar. So, the correct option is A.

6 0

3 years ago

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