80.0 grams of NaOH is dissolved in water to make a 6.00 L solution. What is the molarity of the solution? (Molar mass of NaOH
= 40.0 g/mol)
M М.

0.333 M

Explanation:

Divide the mass of NaOH by the molar mass and then divide by the volume.

80.0 g / 40.0 g/mol = 2.00 mol NaOH

2.00 mol NaOH / 6.00 L = 0.333 M NaOH

pure water does not conduct electricity very well. however, when certain substances are dissolved in water, the solution does conduct electricity. you can make a simple device that shows how well a solution conducts electricity. this device uses a flashlight bulb to indicate how well the solution conducts electricity. the better the solution conducts electricity, the brighter the bulb will glow.

explanation:

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.