You now know that [pb+2] = 0.17 m. calculate [cl-].

refer to equations given in the text to determine the relationship between these ions.

0.17 m
0.26 m
0.34 m
0.51 m

0.34 M

Explanation:

Concentration of Pb2+ = 0.17 M

Pb2+ (lead ion) and Cl- (chloride ion) will combine to form lead chloride (PbCl₂)

Based on the chemical formula stoichiometry for every Pb2+ there are 2 Cl-.

Therefore, the relationship between the two ions would be:

[Cl-] = 2([Pb2+])

[Cl-] = 2(0.17 M) = 0.34 M

asking the goog might u get an answer

(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