Asolution has a volume of 2.0 l and contains 36.0 g of glucose. if the molar mass of glucose is 180 g/mol, what is the molarity of the solution?

- Molarity of the glucose solution is 0.1M.

Solution:- Molarity is moles of solute per liter of the solution.

From given info, 36.0 grams of glucose are present in a 2.0 L solution. We need to convert the grams to moles using molar mass and then divide the moles by the liters to get the molarity.

First step, grams to moles conversion:

= 0.2 mol

Second step, calculations for molarity:

molarity =

= 0.1M

(where, M stands for molarity)

So, the molarity of the glucose solution is 0.1M.

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.