How many moles of MgCl2 are present in 47.5 mL of 0.260 M MgCl2 solution?

0.01235 moles

Explanation:

Given data:

volume = 47.5 ml = 0.0475 L

concentration = 0.260 M

To  find:

number of  moles: ?

Formula:

No of moles = concentration x volume (in litres)

M is equal to moles per liter, so if you multiply the volume in liters times the value of M, the result will tell you the number of moles.  

Solution:

no. of moles = 0.260 M x 0.0475 L

= 0.01235 moles

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

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.