1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kupik [55]
3 years ago
9

If you answer in 10 minutes you'll get 50 points

Chemistry
2 answers:
Andreyy893 years ago
8 0
This answer is A) grams
lisabon 2012 [21]3 years ago
5 0

Answer:

grams

Explanation:

You might be interested in
Is caffeine additive?
Romashka-Z-Leto [24]

Answer:

yes

Explanation:

yes

7 0
3 years ago
Read 2 more answers
When 150. g zinc sulfide are burned in excess oxygen, 68.5 g of zinc oxide are actually produced, along with sulfur dioxide. Det
Bumek [7]

%yield = 54.6%

<h3>Further explanation</h3>

Percent yield is the compare of the amount of product obtained from a reaction with the amount you calculated

(theoretical)

General formula:

Percent yield = (Actual yield / theoretical yield )x 100%

<h3 />

Reaction

2ZnS+3O₂ ⇒ 2ZnO+2SO₂

MW ZnS = 97.474 g/mol

  • mol ZnS

\tt \dfrac{150}{97.474}=1.54

MW ZnO = 81.38 g/mol

  • mol ZnO (from mol ZnS as limiting reactant, O₂ excess)

\tt \dfrac{2}{2}\times 1.54=1.54

  • Actual ZnO produced

\tt 1.54\times 81.38=125.33~g

Theoretical production = 125.388

  • %yield

\tt \dfrac{68.5}{125.33}\times 100\%=\boxed{\bold{54.6\%}}

4 0
3 years ago
Given the following thermochemical equation 2N2O(g) → 2N2(g) + O2(g) ∆Hº = –166.7 kJ/mol find the amount of heat that will be pr
soldi70 [24.7K]

Answer:

Explanation:

2N₂O(g) → 2N₂(g) + O₂(g)

molecular weight of N₂O = 44

∆Hº = –166.7 kJ/mol

44 g of N₂O decomposes to give 166.7 kJ of heat

2.25 g of N₂O decomposes to give 166.7 x 2.25 / 44 kJ of heat

= 8.51 kJ of heat .

5 0
3 years ago
What is the mass in grams of a cube of copper that has a volume of 74.1cm
9966 [12]
Do you know the density?....
6 0
4 years ago
1. Why was the eruption of Mount St. Helens significant?
Vaselesa [24]

Answer:

it killed an extremely late amount t of people and destroyed Pompeii I believe

6 0
3 years ago
Read 2 more answers
Other questions:
  • Perform the following
    13·1 answer
  • How many moles are in 1.93x1023 particles of Na3PO4?
    15·2 answers
  • In a model of an atom, where would I find a valence electron<br><br><br> Help
    9·1 answer
  • Out of 13 students how many<br> saw themselves in the<br> horoscope?
    7·1 answer
  • A sample of nitrogen gas has a mass of 48.6 grams. How many N2 molecules are there in the sample? molecules Submit Answer &amp;
    8·1 answer
  • Which statement is true regarding the diagram of circle P? The sum of y and z must be 2x. The sum of y and z must be x. The diff
    5·2 answers
  • What factors do ride engineers have to consider when designing roller coasters to give riders a thrilling experience that is als
    6·2 answers
  • Most females have one X and one Y (XY) sex chromosome.<br> true or false
    14·1 answer
  • Can a solid defuse into both a liquid and a solid
    14·2 answers
  • During a lab exam a student looked through the microscope and identified the following cell parts: circular DNA, ribosomes, cell
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!