Read the statement.

Some amount of water is evaporated from a 2.0 L, 0.2 M NaI solution, to from a 1.0 L solution. The molar mass of NaI is 150 g/mol.

What is the final concentration of NaI solution in?

30 g/L
15 g/L
60 g/L
45 g/L

60 g/L is the final concentration of NaI solution .

Explanation:

Molarity of NaI solution before evaporation =

Volume of NaI solution before evaporation =

Molarity of NaI solution after evaporation =

Volume of NaI solution after evaporation =

( dilution)

Molar mass of NaI = 150 g/mol

Concentration of NaI after evaporation :

0.4 M × 150 g/mol = 60 g/L

60 g/L is the final concentration of NaI solution .

distance, luminosity, brightness, radius, chemical composition, and temperature

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.