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3 years ago

Explain in terms of charge distribution why a molecule of butanamide is polar

Chemistry

1 answer:

Phoenix [80]3 years ago

5 0

The butanamide molecule has an asymmetrical distribution of charge.

The molecule has uneven charge distribution

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Be sure to answer all parts.

MrRissso [65]

Answer: The molarity of each of the given solutions is:

(a) 1.38 M

(b) 0.94 M

(c) 1.182 M

Explanation:

Molarity is the number of moles of a substance present in liter of a solution.

And, moles is the mass of a substance divided by its molar mass.

(a) Moles of ethanol (molar mass = 46 g/mol) is as follows.

$Moles = \frac{mass}{molar mass}\\= \frac{28.5 g}{46 g/mol}\\= 0.619 mol$

Now, molarity of ethanol solution is as follows.

$Molarity = \frac{moles}{Volume (in L)}\\= \frac{0.619 mol}{4.50 \times 10^{2} \times 10^{-3}L}\\= 1.38 M$

(b) Moles of sucrose (molar mass = 342.3 g/mol) is as follows.

$Moles = \frac{mass}{molar mass}\\= \frac{21.6 g}{342.3 g/mol}\\= 0.063 mol$

Now, molarity of sucrose solution is as follows.

$Molarity = \frac{moles}{Volume (in L)}\\= \frac{0.063 mol}{0.067 L} (1 mL = 0.001 L)\\= 0.94 M$

(c) Moles of sodium chloride (molar mass = 58.44 g/mol) are as follows.

$Moles = \frac{mass}{molar mass}\\= \frac{6.65 g}{58.44 g/mol}\\= 0.114 mol$

Now, molarity of sodium chloride solution is as follows.

$Molarity = \frac{moles}{Volume (in L)}\\= \frac{0.114 mol}{0.0962 L}\\= 1.182 M$

Thus, we can conclude that the molarity of each of the given solutions is:

(a) 1.38 M

(b) 0.94 M

(c) 1.182 M

4 0

3 years ago

A length of 10 cm equals how many dm? Mark all that apply.

kkurt [141]

Answer:

1 dm

Explanation:

Centimeter and decimeter both are units of length.

Centimeter is represented as "cm" while decimeter is represented as "dm"

centimeter is larger than decimeter. One centimeter have 10 decimeter.

1 cm = 10 dm

So in order to convert cm to dm we will divide the given value by 10.

10 dm × 1 cm/10 cm

1 dm

6 0

3 years ago

What can a swarm of grasshoppers do to a farmers crop?

Brums [2.3K]

It could destroy the crops by jumping all over them

8 0

3 years ago

What orbital type is being filled throughout the transition metal B Groups?

Nataliya [291]

Answer:

The correct answer is: d-orbital

Explanation:

The transition metals are the chemical elements that belong to the B-group of the periodic table, from group 1B to 8B. The B-group is located between the groups IIA and IIIA in the periodic table.

The general electronic configuration of the chemical elements belonging to this group is (n-1) d¹⁻¹⁰ ns⁰⁻², because of the partially filled d-subshell in the ground state or excited state. Therefore, the transition metals are refereed as the d-block elements.

8 0

3 years ago

Question 3:

Oliga [24]

E. Molarity of vinegar

i hope u get this i tried to figure it out hopefully im right

good luck!

5 0

3 years ago