maru3205 maru3205

21-12-2017
Chemistry

contestada

How many coulombs of electrical charge are transferred from pb to pbo2?

Respuesta :

Dejanras Dejanras

27-12-2017

Oxidation number of Pb is 0 (neutral atom), oxidation number of Pb in PbO is +4, so Pb lost 4 electron from Pb⁰ to Pb⁺⁴. Charge of one electron is -1,6·10⁻¹⁹C. Q= 4·(-1,6·10⁻¹⁹C)= -6,4·10⁻¹⁹C.

Answer Link

Otras preguntas

Various pieces of safety equipment are used in the lab to provide protection against injury. Which of the following pieces of lab safety equipment is least like

the cost of fuel is on the rise. In what way will this affect global trade

Use the slope formula to find the slope of the line passing through the given points (-4, 7) and (0, 8)

When describing or explaining the behavior of others, we tend to blame the person; however, when explaining our own behavior, we tend to blame the situation. th

For which function will both ordered pairs (3, 6) and (4, 8) be solutions? y = x + 3 y = 2x y = x + 4 y = 12 - x

Read the sentence. My friend Arden is writing a funny story about her family. Which is the antecedent of “her”? story friend family Arden

The accounting book or computer program where each day's transactions are first recorded is called a:

A ball is projected upward at time t=0.0s, from a point on a roof 90m above the ground. The ball rises, then falls and strikes the ground. The initial velocity

If 16 key chains cost $19.68, then 25 key chains cost $. Answer:

Lisa invests $4,000 in two types of bonds, bond A and bond B. Bond A offers a 10% return, and bond B offers a 6% return. Lisa invests $x in bond A and $y in bon