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mojhsa [17]
3 years ago
11

Please help soon!!! About Chemistry and noble gas notations.

Chemistry
1 answer:
Svetach [21]3 years ago
8 0

Answer:

play video games all days

Explanation:

ggggggggghahahahahahaha

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The vapor pressure of water at 45oC is 71.88 mmHg. What is the vapor pressure of a sugar (C12H22O11) solution made by dissolving
Tju [1.3M]

Answer:

69.79 mmHg is the pressure for the solution

Explanation:

Formula for vapor pressure lowering:

Vapor pressure of pure solvent(P°) - Vapor pressure of solution (P') = P° . Xm

Xm → Molar fraction of solute (moles of solute / Total moles)

Total moles = Moles of solute + Moles of solvent

Let's determine the moles:

50.36 g . 1mol/342 g = 0.147 moles of sugar

88.69 g. 1mol/ 18g = 4.93 moles of water

Total moles = 0.147 + 4.93 = 5.077 moles

Xm = 0.147 / 5.077 = 0.0289

If we replace data given in the formula:

71.88 mHg - P' = 71.88 mmHg . 0.0289 . 0.0289

P' = - (71.88 mmHg . 0.0289 - 71.88 mmHg)

P' = 69.79 mmHg

5 0
3 years ago
WILL MARK BRAINLY! Which chemical element has the shortest name?
Aleonysh [2.5K]

Answer:

boron I guess

hope this heps

5 0
3 years ago
Complete the sentence using ide, ate or Ic. To determine the name of an anion, you take the name of its element and replace the
lara31 [8.8K]

To determine the name of an anion, you take the name of its element and replace the end with "ide".

<h3>What is an anion?</h3>

An anion in chemistry is a negatively charged ion.

Anions are usually formed when a non-metallic atom gains electron(s).

An anion is usually named by taking the elemental name, removing the ending, and adding “ide.

Examples of anions are as follows:

  • fluoride (F-)
  • Chloride (Cl-)
  • Iodide (I-)

Learn more about anions at: brainly.com/question/15578817

#SPJ1

8 0
2 years ago
In every balanced chemical equation, each side of the equation has the same number of ____. select all that are true.
rjkz [21]
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It's answer should be atoms...
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3 years ago
Determine how many moles are present in 0.23kg of SO(2)
Rama09 [41]

Answer:

3.59 moles

Explanation:

Hopefully this helps! :)

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6 0
3 years ago
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