10 seconds = 8grams
then just divide by 2 another 4 times...
= 0.5grams after 50 seconds
The molar mass of the compound potassium nitrate, KNO3 is equal to 101.1032 g/mol. Then, we determine the number of moles present in the given amount,
n = 11.75g / (101.1032 g/mol) = 0.116 mol
Then, molarity is calculated by dividing the number of moles by the volume of the solution. The answer is therefore 0.058 M.
Answer:
I got 3/8, hope this helps.
Explanation: