mrw425
mrw425 mrw425
  • 23-05-2017
  • Chemistry
contestada

What mass of potassium iodide is needed to prepare 5.60 L of a 1.13 M solution

Respuesta :

JavierCollante
JavierCollante JavierCollante
  • 23-05-2017
given that the question gives us concentration (M) and volume, we can use these so get moles. remember that Molarity (M)= mol/ Liters, so if we want the moles, then

moles= M x L

moles= 1.13 x 5.60= 6.33 moles KI

now to get the mass in grams, we need the molar mass of potassium iodide (KI) which can be determined using the periodic table and add the masses of each atom.

molar mass KI= 39.1 + 127= 166.1 g/mol

6.33 mol (166 g/ 1 mol)= 1050 grams KI


Answer Link

Otras preguntas

77 1/2 divide by 2 1/4
A 180 ft long board is cut into 3 pieces. The second piece of board is twice as long as the first. The third piece of board is six times as long as the first. W
What is 5370288 rounded to the nearest one hundred thousand
What is considered the greatest example of Incan engineering?
A car starts a journey with a full tank of gas. The equation y=16 - 0.05x relates the number of gallons of gas, y, left in the tank to the number of miles the
Identify the radicand in the radical below
In this image, the positive space A. Is the telescope and the ground B. Is blended with the negative space C. Is the sky D. Is the stars
Answer the question
Has anyone done the module 2 dba for Marine science.
What are two reasons, why Anne and her mother don't get along? (Anne Frank)