50.0 grams of kcl is dissolved in water to make a 4.00 l
solution. what is the molarity of the solution? (molar mass of
kci = 74.5 g/mol) _ m(round your answer to the
appropriate number of four significant figures)
enter the answer
check it

Molarity = 0.1678 M

Explanation:

Given data:

Volume = 4.00 L

Mass of KCl = 50.0 g

Molarity = ?

Solution:

Formula:

Molarity = number of moles / volume in L

Number of moles = mass/ Molar mass

Number of moles = 50.0 g/ 74.5 g/mol

Number of moles = 0.8 mol

Molarity = 0.8 mol / 4.00 L

Molarity = 0.1678 M

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante