What mass of solid that has a molar mass of 89.0 g/mol should be added to 100.0 g of benzene to raise the boiling point of benze
ne by 2.42°C? (The boiling point elevation constant of benzene is 2.53°C•kg/mol.)
Use the equation attached.
2.84 g
8.52 g
21.5 g
93.0 g
Use the equation attached.
2.84 g
8.52 g
21.5 g
93.0 g
1 answer:
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Answer:
<h2>The constant of proportionality is 0.50</h2>Step-by-step explanation:
The constant of proportionality is the unit ratio between variables.
According to the problem, Marie pays $2.50 for 5 pencils. So, the unit ratio os this would be the constant of proportionaliy. To find it, we just need to divide.
Therefore, the constant of proportionality is 0.50, which means Marie paid $0.50 per pencil.