How many grams of ammonium chloride (nh4cl) do you have if you have 0.436 moles?

0.436 moles of ammonium chloride (NH4Cl) has a mass of 23.3 grams

Explanation:

Step 1: Data given

Number of moles of NH4Cl = 0.436 moles

Molar mass of NH4Cl = 53.49 g/mol

Step 2: Calculate mass of ammonium chloride

Mass = moles * molar mass

Mass NH4Cl = moles NH4Cl * molar mass NH4Cl

Mass NH4Cl = 0.436 moles * 53.49 g/mol

Mass NH4Cl = 23.3 grams

0.436 moles of ammonium chloride (NH4Cl) has a mass of 23.3 grams

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