Rates of reaction surface area.

Posljednje ažuriranje over 1 year ago

3 questions

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What mass of magnesium sulfate will be produced by the reaction?

moles of Mg = mass / RAM = / =

is From the balanced equation the ratio of Mg to MgSO₄ is 1:1

so the moles of MgSO₄ = .

RFM of magnesium sulfate =

mass of magnesium sulfate = moles x RFM

mass of magnesium sulfate = 0.125 x 120 = g

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Rate = volume / time

Rate = /

Rate = cm³/s

20 (d) Bobby does the experiment one more time. This time, he uses smaller pieces of magnesium. How will this change the rate of the reaction?

hydrogen ions from the acid react with magnesium atoms on the of the magnesium pieces.

using pieces of magnesium gives a surface area for the same so the surface area to volume ratio allowing the H⁺ ions to collide more with the magnesium atoms this will the rate of reaction

Drugi mogući odgovor:

increases

increase

surface

larger

H⁺

frequently

volume

smaller