Calculate the volume of the stock solution needed
What equation would you use to calculate the volume of the stock solution needed to prepare a solution that has a concentration that is less than 20% (v/v) (like 15% for example) in a 10mL flask if you have a 20% (v/v) ethanol solution.
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Determine the numbers of moles of gas would need to be added to the container at the constant temperature to increase the pressure from 1.00 atm to 1.80atm? A rigid container holds 3.00 moles of an ideal gas at 298K.
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