Answer:
0.1 M is the answer and I have explained it in the attachment below.
Hope this helped!
Answer:
All of the above.
Explanation: Their particles are so close packed together.
Answer: Molarity of the solution is 0.813 M.
Explanation:
Given : Mass of NaOH = 97.68 g
Volume of solution = 3 L
The molar mass of NaOH is 39.99 g/mol. Hence, moles of NaOH are calculated as follows.

Molarity is the number of moles of solute present in a liter of solution. Therefore, molarity of given solution is calculated as follows.

Thus, we can conclude that molarity of the solution is 0.813 M.
Everything I'm reading says that both Gneiss AND Schist has a nonfoilated texture. Try one of them, sorry.