# 5.92Question 21 ptsThe LD50 of KCN for a 75kg person is 375mg. If this amount of KCN was putinto a single cup (275mL) of coffee, what would be the concentration of theKCN in moles per liter?No answer text provided.0.7331.360.0209Submit OuizNo new data to save Last checked at 5:24pm45AGES

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Asked Oct 15, 2019
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The LD50 of KCN for a 75kg person is 375mg. If this amount of KCN was put into a single cup (275mL) of coffee, what would be the concentration of the KCN in moles per liter?

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Step 1

Given:

The median lethal dose of the of potassium cyanide is 375mg for 75kg person.

Volume of a single cup = 275ml

Step 2

Molecular weight of KCN= weight of (C+N+K)

= (12+14+39)g

= 65g

Step 3

To calculate the concentr...

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