Calculate the molarity of a solution that contains 15.7 g of CaCO3 dissolved in enough water to make 275 mL of solution.

Molarity= 0.57M

Explanation:

m=15.7 Molar mass Of CaCO3= 100 V=0.275dm3 C=?

n= m/M = 15.7/100= 0.157mole

n= C×V

0.157= C× 0.275

C= 0.57M

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

i have no clue hope you find the answer