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BlackZzzverrR [31]
3 years ago
6

John and Alex were asked to make a 0.70 M solution. John measure out .35 L from the 2.0 M solution before asking how much soluti

on was needed. Alex remembered that measured out solutions are never put back in the stock bottle so went ahead and used all that was measured out. How many liters of the 0.70 M solution was made?
Chemistry
1 answer:
nasty-shy [4]3 years ago
3 0

Answer:

1.0 L

Explanation:

Given data

  • Initial volume (V₁): 0.35 L
  • Initial concentration (C₁): 2.0 M
  • Final volume (V₂): ?
  • Final concentration (C₂): 0.70 M

John and Alex prepared a diluted solution from a concentrated one. We can find the volume of the diluted solution using the dilution rule.

C₁ × V₁ = C₂ × V₂

V₂ = C₁ × V₁ / C₂

V₂ = 2.0 M × 0.35 L / 0.70 M

V₂ = 1.0 L

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Answer: The bond between boron and hydrogen in boron trihydride is covalent bond.

Explanation:

The type of bonding between the atoms forming a compound is determined by using the electronegativity difference between the atoms. According to the pauling's electronegativity rule:

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We are given:

Electronegativity for boron = 2.0

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The balanced reaction is:

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Explanation:

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Answer:

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Yet but I will find it for you

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