The answer is B. Acid turns blue litmus paper to red
Answer:
Explanation:
The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged). Atoms have different properties based on the arrangement and number of their basic particles.
Molar mass NaOH = 39.997 g/mol
Number of moles :
n = mass of solute / molar mass
n = 11.5 / 39.997
n = 0.287 moles
Therefore :
Molarity = moles solute / volume
Molarity = 0.287 / 1.5 => 0.1913 M
