How many moles are 1.50 x 10^23 molecules of naoh? show work . (20 points)

Given:

# Molecules of NaOH = 1.50 * 10²³

To determine:

The # moles of NaOH present in the given molecules

Explanation:

By definition:

1 mole of NaOH corresponds to Avogadro's number i.e. 6.023*10²³ molecules

Therefore the moles of NaOH corresponding to the given molecules would be = 1.50*10²³ molecules NaOH * 1 mole NaOH/6.023*10²³ molecules NaOH

= 0.249 moles

Ans: 0.249 moles of NaOH

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)