Calculate the precise Molar Mass of NH3 and calculate the moles in 50.0
grams.

Molar mass of is 17.00 g and moles in 50.0 grams is 2.94.

Explanation:

Molar mass is defined as the mass in grams of 1 mole of a substance.

S.I Unit of Molar mass is gram per mole and it is represented as g/mol.

Atomic Mass of Nitrogen (N) = 14.00 g

Atomic Mass of Hydrogen (H) = 1.00 g

Molar mass of = 1(14.00)+3(1.00) g = 17.00 g

According to avogadro's law, 1 mole of every substance contains avogadro's number of particles and weigh equal to its molecular mass.

To calculate the moles, we use the equation:

answer: they produce more slow than unicellular organisms.

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied