Amixture of potassium bromide and potassium hydroxide has a total mass of 5.50 g. if the mixture contains 2.45 g k, what is the mass in grams of potassium hydroxide in the mixture? give the numerical part of your answer only; don't include the units.

1.72 grams is the mass of potassium hydroxide in the mixture.

Explanation:

Total mass of the mixture = M = 5.50 g

Le the mass of KBr and KOH be x and y.

x + y = 5.50 g..[1]

Moles of KBr =

1 mol of KBr has 1 mol of potassium . Then moles of KBr will have:

Mass of potassium in x amount of KBr :

= ...[2]

Moles of KOH=

1 mol of KOH has 1 mol of potassium . Then moles of KOH will have:

Mass of potassium in y amount of KOH :

= ...[3]

Mass of potassium in the mixture = 2.45 g

0.33x+ 0.70y=2.45 g..[4] (from [2] and [3] )

On solving [1] and [4] we get:

x = 3.78 g, y = 1.72 g

1.72 grams is the mass of potassium hydroxide in the mixture.

h

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.