A high blood alcohol concentration is considered to be 0.25 g/dL. What is the molarity of this blood alcohol (CH3CH2OH) level?

0.054 M

Explanation:

A high blood alcohol concentration is considered to be 0.25 g/dL. We will express it in g/L, considering that 1 L = 10 dL.

0.25 g/dL × (10 dL/1 L) = 2.5 g/L

The molar mass of this blood alcohol (ethanol) is 46.07 g/mol. The molarity of this alcohol (moles of solute per liter of solution) is:

2.5 g/L × (1 mol/46.07 g) = 0.054 mol/L = 0.054 M

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.