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Anastaziya [24]
2 years ago
7

What do you notice about the dipole moment vector and the hydrogen bond? think about why the direction of the dipole vector make

s sense in terms of the idea of hydrogen bond donor vs. acceptor.
Chemistry
1 answer:
Nonamiya [84]2 years ago
3 0

The oxygen atom is next to the negative terminal of the dipole vector. This occurs as a result of the atom's electronegative nature and abundance of lone electron pairs. Because it trades up its lone pair electrons to create a hydrogen bond, such oxygen is called the hydrogen bonding donor.

Hydrogen-bonded compounds exhibit abnormally high melting and boiling points. According to the additional energy required to break these bonds, the molecule with hydrogen bonds has a high melting or boiling point.

The dipole moment increases with the difference in electronegativity. Another element affecting the size of the dipole moment was the spacing between the charge separations. The polarity of the molecule is determined by the dipole moment.

Therefore, the oxygen atom is next to the negative terminal of the dipole vector. This occurs as a result of the atom's electronegative nature and abundance of lone electron pairs.

To know more about dipole vector.

brainly.com/question/20815109

#SPJ4

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What is the molarity of a .25 liter solution containing 52 grams of HBr?
Phantasy [73]
Molar mass HBr = 80.91 g/mol

number of moles:

mass of solute / molar mass

52  / 80.91 => 0.642 mols

Volume = 0.25 L

M = n / V

M = 0.642 / 0.25

M = 2.568 mol/L

hope this helps!

4 0
4 years ago
How many grams are in 1.25 moles of Potassium hydroxide, KOH?<br><br>1 point​
klasskru [66]

Answer:

There are 70 grams of KOH

Explanation:

First, we calculate the weight of 1 mol of KOH:

Weight 1 mol KOH: Weight K + Weight 0 + Weight H=  39g+ 1g+ 16g= 56 g/mol

1 mol-------56 g KOH

1,25 mol----x= (1,25 molx56 g KOH)/1 mol= <em>70 g KOH</em>

7 0
4 years ago
Find the density of a cube on Earth that weighs 1.5 kg and has a side-length of 10 cm.
Inga [223]

Answer:

1.5g/cm³

Explanation:

density=mass÷volume

mass= 1.5kg (<em>c</em><em>h</em><em>a</em><em>n</em><em>g</em><em>e</em><em> </em><em>i</em><em>n</em><em>t</em><em>o</em><em> </em><em>g</em>) = 1500g

volume of the cube = 10×10×10 = 1000cm³

density= divide 1500g÷1000cm = 1.5g/cm³

<h2>Density= 1.5g/cm³</h2>

YOUR WELCOME!

4 0
3 years ago
What do the repetitive patterns in a mineral form
siniylev [52]

Answer:

The repeating pattern of a mineral's particles form a solid called a <u>crystal</u>.

Explanation:

4 0
3 years ago
The half life for the radioactive decay of carbon- to nitrogen- is years. Suppose nuclear chemical analysis shows that there is
ivann1987 [24]

Answer:

Age of rock = 6.12 × 10³ years

Note: The question is incomplete.A similar but complete question is given below.

The half-life for the radioactive decay of carbon-14 to nitrogen-14 is 5.73 x 10^3 years. Suppose nuclear chemical analysis shows that there is 0.523mmol of nitrogen-14 for every 1.000 mmol of carbon-14 in a certain sample of rock.

Calculate the age of the rock. Round your answer to 2 significant digits.

Explanation:

The half-life of a radioactive material is the time taken for half the atoms in the atomic nucleus of a material to disintegrate.

The half-life for the radioactive decay of carbon-14 to nitrogen-14 is given as 5.73 x 10³ years. This means that given 1 mole of carbon-14 is present initially, after one half-life, 0.5 moles of carbon-14 would remain.

Number of millimoles of carbon-14 remaining = 1 - 0.523 = 0.477 mmol

Number of half-lives that the carbon-14 has undergone is determined as follows:

Amount remaining = (1/2)ⁿ

where nnis number of half-lives

0.5 mmol = one half-life

0.5 = (1/2)¹

O.477 = (1/2)ⁿ = (0.5)ⁿ

㏒₀.₅(0.477) = n

n = ㏒(0.477)/㏒(0.5)

n = 1.067938829

Age of the rock = number of half-lives × half-life

Age of rock = 1.067938829 × 5.73 × 10³ years

Age of rock = 6.12 × 10³ years

6 0
3 years ago
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