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MrRa [10]
3 years ago
15

HELP ITS DUE IN 10 MIN How long will it take an object to move 100 meters if the object is traveling with an average

Chemistry
1 answer:
tiny-mole [99]3 years ago
5 0

Answer:

Would it be<em><u> 7.69 seconds</u></em>?

Explanation:

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5 0
3 years ago
How many grams of potassium chloride are needed to make 100 ml of a solution containing 250 mosmol/l? (m.w. of potassium is 39 a
LUCKY_DIMON [66]
In dilute solutions, the unit osmolarity is being used. It usually has units milliosmols per liter of solution or mOsmol/L. An osmole defines the number of moles of the solute that would have an effect on the osmotic pressure of the solution. Osmolarity is calculated by the product of the molarity and the number of particles in the solution which is 2 for potassium chloride. We calculate as follows:
Osmolarity = molarity (# of particles)250 mosmol/L ( 1 osmol / 1000 osmol) = x moles / .100 L (2)
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