A sample of barium hydroxide, Ba(OH)2, is known to have become contaminated with barium carbonate, BaCO3, by reaction with CO2 in the air. A 2.00 g sample is titrated with 0.450M HCI
and it is found that 55.56 mL of HCl are required for neutralization. Calculate the percentage by
mass of BaCO3 in the sample.

yes yes yes yes yes yes yes yes yes yes yes yes yes yes yes

explanation:

the maximum mass of nh3 is nh3 in grams

(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