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Ivenika [448]
3 years ago
14

What is the concentration of 10.00 mL of HBr if it takes 16.73 mL of a 0.253 M LiOH solution to neutralize it?

Chemistry
1 answer:
Leni [432]3 years ago
3 0
First. let's write the reaction formula: HBr +LiOH ----> LiBr + H₂O

let's get the moles of LiOH first

moles= Molarity x Liters

moles= 0.253 M x 0.01673 Liter= 0.00423 moles LiOH

using the balanced equation, you can see that 1 mol LiOH is equal to 1 mol HBr. so:

0.00423 mol LiOH = 0.00423 mol HBr

now let's find the concentration

molarity= mol/ Liters

0.00423 mol/ 0.01000 Liters= 0.423 M
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  1. The bond polarities of a molecule of ammonia (NH₃) are <u>polar</u>.
  2. The molecular shape of a molecule of ammonia (NH₃) is <u>trigonal pyramidal</u>.
  3. The molecule of a molecule of ammonia (NH₃) is <u>polar</u>.

<h3>The types of covalent bond.</h3>

In Chemistry, there are two (2) main types of covalent bond and these include the following:

  • Polar covalent bond.
  • Non-polar covalent bond.

<h3>What is electronegativity?</h3>

Electronegativity can be defined as the ability or tendency of the atom of an chemical element to attract any shared pair of electrons.

In Chemistry, the difference in electronegativity between an atom of nitrogen (N) and hydrogen (H) causes electrons to preferentially orbit an atom of nitrogen (N), thereby, making the bond polar.

Furthermore, the molecular shape of a molecule of ammonia (NH₃) is <u>trigonal pyramidal</u> and the molecule of a molecule of ammonia (NH₃) is <u>polar</u>.

Read more on bond polarities and electronegativity here: brainly.com/question/12789975

#SPJ1

<u>Complete Question:</u>

Describe the characteristics of a molecule of ammonia (NH3). The Lewis structure and table of electronegativities are given.

The bond polarities are BLANK 1, the molecular shape is BLANK 2, and the molecule is BLANK 3.

blank 1 options: nonpolar, polar

blank 2 options: bent, linear, tetrahedral, trigonometry planar, trigonal pyramidal.

Blank 3 options: nonpolar, polar

3 0
2 years ago
the temperature of a gas is increased from 125C to 182C inside of a rigid container. the original pressure of the gas was 1.22at
Mariulka [41]

Answer:

1.39 atm

Explanation:

First find combined gas law equation. Then rearrange variable to match problem. You should get...

P2 = P1T2/T1

Next, change celcius temperatures to kelvin. Do this by adding 273 K (standard STP). Then fill in the numbers to go along with equation. You should get...

P2 = 1.22 atm x 455 K / 398 K = 1.39 atm

- If you need further explanation or more help please let me know. I would be glad to offer more of an explanation or help on other problems.

5 0
3 years ago
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