What is the molarity of a solution prepared by dissolving 2.5 grams of lino3 in sufficient water to make 60.0 ml of solution?

The molarity of the solution is 0.6

Explanation:

Molarity (M) is the number of moles of solute that are dissolved in a given volume.

The Molarity is expressed by:

Molarity is expressed in units .

Then you must know the moles that represent 2.5 grams of LiNO₃.

For that you must know the molar mass of the compound. You know the atomic mass of the elements that make up the compound, obtained from the periodic table:

So, taking into account the abundance of each element in the compound:

LiNO₃= 7 g/mol + 14 g/mol + 3*(16 g/mol)= 69 g/mol

Then a rule of three applies as follows: if 69 g of LiNO₃ is 1 mol of the compound, 2.5 g of LiNO₃ how many moles are there?

moles= 0.036

Being 60 mL = 0.06 L (1L = 1000 mL or 1 mL = 0.001 L), the molarity is calculated as:

M=0.6

The molarity of the solution is 0.6

first let us lay out the formula for potential

and kinetic energy:

pe = mgh

ke = (mv^2)/2

where: m=mass, v=velocity, g=gravitational

acceleration, h=height

calculating for mass using the known values of

pe:

340j = m (9.81 m/s^2) (50ft) (1m/3.28ft)

m = 2.27 kg

the law of conservation of energy states that

energy is neither created nor destroyed. therefore, the change in kinetic

energy from 50 ft to 35 ft would be equal to the change in potential energy

from 50 ft to 35 ft. however it would be opposite in signs since one is losing

while other is gaining.

ke(35ft) – ke(50ft) = - [ pe(35ft) – pe(50ft]

ke(50ft) = 0 since the brick is initially at rest

ke(35ft) = 340j - 2.27kg (9.81 m/s^2) (35ft)

(1m/3.28 ft)

ke(35ft)

= 102.38 j