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
dolphi86 [110]
3 years ago
13

Consider the oxidation of sodium metal to sodium oxide described by the balanced equation: 4 na + o2 ? 2 na2o. if 2.55 mol of so

dium reacts, what is the percent yield if the reaction actually gives 75.0 g of na2o?
Chemistry
1 answer:
Viefleur [7K]3 years ago
7 0
The balanced reaction:

<span>4Na + O2 = 2Na2O

We use the relation of the substances and the amount of sodium to determine the theoretical yield of the reaction. This yield is the amount produced if all the reactant is consumed.

2.55 mol Na (2 mol Na2O / 4 mol Na) ( 61.98 g / 1 mol ) = 79.02 g Na2O

Percent yield = 75.0 / 79.02 x 100 = 94.91%</span>
You might be interested in
How many atoms of fluorine are present in a molecule of carbon tetrafluoride CF4
Daniel [21]
There are 4, 1 Carbon 4 Fluorine 
3 0
3 years ago
The difference in hydrogen ion concentration between solutions with ph4 and ph5 is
jonny [76]
I think the answer is tenfold

hope this helps :)
4 0
3 years ago
What are three possible blood type alleles?
Keith_Richards [23]

Answer:

Three possible blood type alleles are Iᴬ, Iᴮ and i

Explanation:

Iᴬ, Iᴮ and i are three possible blood type alleles.

Iᴬ and Iᴮ are known as co-dominant, and The i allele is recessive.

Thus, Three possible blood type alleles are Iᴬ, Iᴮ and i

<u>-TheUnknownScientist</u>

8 0
3 years ago
Read 2 more answers
1. Write the balanced chemical equation for the synthesis of magnesium phosphide from its elements, including the word “energy”
Evgen [1.6K]

Answer:

3Mg(s) +2P(s) -------> Mg3P2(s) + energy

Keq= [Mg3P2]/[Mg]^3 [P]^2

Explanation:

The equation for the formation of magnesium phosphide from its elements is;

3Mg(s) +2P(s) -------> Mg3P2(s) + energy

Hence we can see that three moles of magnesium atoms combines with two moles of phosphorus atoms to yield one mole of magnesium phosphide. The equation written above is the balanced chemical reaction equation for the formation of the magnesium phosphide.

The equilibrium expression for the reaction K(eq) will be given by;

Keq= [Mg3P2]/[Mg]^3 [P]^2

8 0
3 years ago
Polar bears give birth and hunt on sea ice. Which of the following would help polar bears survive during the melting of Arctic i
galina1969 [7]

i think the answer is the second one

4 0
3 years ago
Read 2 more answers
Other questions:
  • Two beakers contain clear. colorless liquids. When the contents of the beakers are mixed a white solid is formed, (a) Is this an
    10·1 answer
  • Typically, water runs through the baseboard copper tubing and, therefore, fresh hot water is constantly running through the pipi
    7·1 answer
  • How much water should be added to 70ml of 60 percent acid solution to dilute it to a 50 percent acid solution?
    6·1 answer
  • What is the formula for this ionic compound and tha name ?
    15·1 answer
  • In response to scientific understanding about food-borne disease, what have scientists and health officials recommended be used
    14·2 answers
  • What are solids at room temperature and conduct electricity and heat?
    7·1 answer
  • How many moles are in 564 grams of copper
    8·2 answers
  • HCl + CaCO3 CaCl2 + CO2 + H2O balance
    11·1 answer
  • What is the name of NaC2H3O2?
    12·2 answers
  • Can someone please help me
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!