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Bingel [31]
3 years ago
12

Discuss four contributing factors that may lead to an increased of learners abusing substances at school

Biology
1 answer:
patriot [66]3 years ago
4 0

Answer:

Family history of addiction. Drug addiction is more common in some families and likely involves genetic predisposition. ...

Mental health disorder. ...

Peer pressure. ...

Lack of family involvement. ...

Early use. ...

Explanation:

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Briefly describe how restriction enzymes, gel electrophoresis, and PCR are used in DNA fingerprinting
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The gradual change and build up of organisms in an environment
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8 0
4 years ago
If 35.0 g of CH3OH (MM = 32.0 g/mol) are dissolved in 500.0 mL of solution, what is the concentration of CH3OH in the solution?​
astra-53 [7]

The concentration of CH3OH in the solution is 2.18M

HOW TO CALCULATE MOLARITY:

  • The molarity of a solution can be calculated by dividing the number of moles by its volume as follows:

  • Molarity {M} = no. of moles (mol) ÷ volume (L)

  • According to this question, 35.0 g of CH3OH (MM = 32.0 g/mol) are dissolved in 500.0 mL of solution. The number of moles of methanol is calculated as follows:

no. of moles = 35g ÷ 32g/mol

no. of moles = 1.09mol

  • Molarity = no. of moles ÷ volume

Volume = 500mL = 0.500L

Molarity = 1.09mol ÷ 0.500L

Molarity = 2.18M

Therefore, the concentration of CH3OH in the solution is 2.18M

Learn more at: brainly.com/question/15948514?referrer=searchResults

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2 years ago
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