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Gnoma [55]
2 years ago
14

Water and ammonia molecules are roughly the same size and the same mass but ammonia boils at -28F (-33C) and water boils at 212F

(100C). What can we conclude about the intermolecular forces between water and ammonia?
Chemistry
1 answer:
Inessa05 [86]2 years ago
3 0
H if itcoycoycoyxkh oucpug
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Potassium hydrogen phthalate, KHC8H5O4, or KHP, is used in many laboratories, including general chemistry laboratories, to stand
Mamont248 [21]

Answer:

Molarity of the sodium hydroxide solution is 0.04687 M.

Explanation:

Amount of potassium hydrogen phthalate = 0.3420 g

Moles of potassium hydrogen phthalate =\frac{0.3420 g}{204.2 g/mol}=0.001675 mol

KHC_8H_4O_4+NaOH\rightarrow NaKC_8H_4O_4+H_2O

According to reaction, 1 mole of potassium hydrogen phthalate reacts with 1 mole of sodium hydroxide, then 0.001675 moles pf potassium hydrogen phthalate will :

\frac{1}{1}\times 0.001675 mol=0.001675 mol of NaOH

Moles of sodium hydroxide = 0.001675 mol

Volume of sodium hydroxide solution =  35.73 mL = 0.03573 L  (1 mL = 0.001 L)

Molarity=\frac{Moles}{Volume (L)}  

Molarity of the sodium hydroxide solution :

=\frac{0.001675 mol}{0.03573 L}=0.04687 M

3 0
3 years ago
What is number “4” in SiCi4?
JulsSmile [24]

It is a subscript

Also do you mean Cl not Ci. I assume you do because then it means 4 chlorine in that compound.

5 0
4 years ago
I am a main group or representative element. I am located in
lesya692 [45]

Answer:

tantalum

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5 0
3 years ago
a light ray hits a hard, opaque object. the angle at which the light ray bounces off the object depends on the smoothness of the
kumpel [21]
The answer would be the third option. (the angle at which the light hits the surface.)<span>
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8 0
3 years ago
Read 2 more answers
Select ALL correct answers. The contact force is caused by: A. Atoms randomly crashing into each other B. The charged particles
Inessa [10]

Answer:

A. Atoms randomly crashing into each other

E. The force of one object pushing against the force of another object.

Explanation:

Forces can be classified into two categories based upon the the mode of transfer or application:

1. Contact forces

2. Non-contact forces

Contact forces are the ones which require the physical contact of the matter to get transferred and tend to create the affect. Whereas non-contact forces have the field property which transfers the affect of force from one point to another without any physical contact of the matter or the medium.

  • Atoms crashing onto each other have some mass and velocity which upon collision impacts the other atoms exerts a contact force.
  • The interaction between the charged particles due to their charges is always due to the electric field be it electron or proton, be it within an atom or out of an atom.
  • The force between any two objects pushing or pulling each other is also possible only due to contact.
6 0
3 years ago
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