rhhed03 rhhed03

19-12-2018
Chemistry

contestada

the equation below shows the decomposition of lead nitrate. how many grams of oxygen are produced when 11.5g NO2 is formed?
2Pb(NO3)2(s) -> 2PbO(s) + 4NO2(g) + O2(g)

a. 2.88 g
b. 2.00 g
c. 32.0 g
d. 1.00 g

PLEASE AND THANK YOU IN ADVANCE

Respuesta :

ongnana ongnana

19-12-2018

Number of moles of NO2 = 11.5/(14+16x2) =0.250mol
Mole ratio: 4NO2 to 1O2
Number of moles of O2=0.250/4 =0.0625mol
Mass of O2 produced= 0.0625x32 =2g
Answer: B

Answer Link

Otras preguntas

Which of the following is an example of team accountability?O Tim approved a change request submitted by the project manager.O Sara collaborated with Jerry to m

A somatic plant cell at metaphase shows 80 chromatids. What would be the number of bivalents in its meiocyte at zygotene stage of prophasei

Match the Adobe software application to its best use.Instructions: Choose your responses from the drop-down menus below. Response options can be used more than

Compare the power used in the 2Ω resistor in each of the following circuits:(i) A 6V battery in series with 1Ω and 2Ω resistors.(ii) A 4V battery in parallel wi

How do these soldiers describe their experiences in Vietnam? What are their attitudes toward their fellow soldiers? a) They describe their experiences as heroic

If the mixture is stoichiometric, the propellant mass fraction is 0.9, and the vehicle mass is 5,000,000 lb, calculate the volume of the hydrogen tank and the v

une enseigne de magasin vend des tablettes tactile à 340 euro comme elle se vendent mal, le gérant de l'enseigne décide d'effectuer une remise cependant, il ne

When two spheres of equal masses undergo perffect inelastic collision with one of them at rest, after collision they will moveA. opposite to one anotherB. in th

It just so happens that there is a tense and aspect combination that was not mentioned in your reading: the future perfect progressive. Which types of verbs wou

You are to create a diary from the point of view of a Holocaust child. It should contain three detailed, lengthy entries and an Afterward. An Afterward is the e