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
sweet [91]
3 years ago
6

What is the percent composition of beryllium (Be) and oxide (O) in BeO? Round

Chemistry
1 answer:
Rus_ich [418]3 years ago
6 0

Answer:

\% Be=36\%\\\\\% O=64\%

Explanation:

Hello!

In this case, since the percent compositions of Be and O in beryllium oxide are computed as shown below:

\% Be=\frac{m_{Be}}{M_{BeO}} *100\%\\\\\% O=\frac{m_{O}}{M_{BeO}} *100\%

Since atomic masses are respectively 9.01 and 16.0 g/mol and the molar mass of the compound is 25.01 g/mol, the resulting percent compositions are:

\% Be=\frac{9.01}{25.01} *100\%=36\%\\\\\% O=\frac{16.0}{25.01} *100\%=64\%

Best regards!

You might be interested in
Why does the titration of a weak acid with a strong base always have a basic equivalence point? Why does the titration of a weak
CaHeK987 [17]

Answer: Option (c) is the correct answer.

Explanation:

When a weak acid reacts with a strong base then it results into the formation of a basic solution. Hence, the resulting solution will always have a pH greater than 7.

Since, at the equivalence point number of hydrogen ions become equal to the hydroxide ions. Therefore, pH of solution will be about 7.

So at the equivalence point, the weak acid will get neutralized due to the addition of strong base. Therefore, it will lead to the formation of conjugate base.

As a result, the solution will become slightly basic in nature.

Thus, we can conclude that at the equivalence point, the acid has all been converted into its conjugate base, resulting in a weakly acidic solution because at the equivalence point, the acid has all been converted into its conjugate base, resulting in a weakly basic solution.

5 0
3 years ago
What is the sum of all charges in the formula for an ionic compound? +1 0 8 –1
Zarrin [17]

An ionic compound is formed between a metal and a non metal. The metal being electropositive can form a cation by transferring the electron to the electronegative non metal that gains the electrons to form an anion. Both the elements try to get a stable octet configuration by the transfer of electrons. The number of electrons lost by metal will be equal to the number of electrons gained by the non metal. Hence, the magnitude of positive charge on the cation will be equal to the magnitude of negative charge on the anion. Therefore, the overall charge on the compound will be 0

So the correct answer is the sum of all charges in the formula for an ionic compound is 0

5 0
3 years ago
Read 2 more answers
In which situation has the independent variable for the experiment been changed?
ki77a [65]
Idk cause I’m not completely sure I apologize
7 0
3 years ago
Read 2 more answers
How is a compound different from mixtures
borishaifa [10]

Answer: a compound is a substance that is made up of more than one type of atoms bonded together, mixtures are a mix of multiple elements or compounds which haven't bonded together.  

Explanation:

8 0
3 years ago
How much energy is needed to completely remove an electron from n $ 2 in a hydrogen atom?
NeTakaya
The energy needed to split an atom into separate protons, neutrons, and electrons
7 0
3 years ago
Other questions:
  • ΚΕ:<br> m.22<br> 2<br> What is the kinetic energy of 10kg dog running with a velocity of 12m/s?
    13·1 answer
  • Atoms of iron (fe) and sulfur (s) form iron sulfide (fes) when the iron atom donates electrons to the sulfur atom. the type of b
    5·1 answer
  • How does chemistry affect our world?
    8·1 answer
  • 1) Ammonium cyanate, NH4CNO, in aqueous solution isomerizes gradually producing urea, H2NCONH2, according to the reaction
    5·1 answer
  • How many joules of heat must be transferred to a 480-g aluminum pizza pan to raise its temperature from 22C to 234C? The specifi
    7·1 answer
  • Please help with this chemistry question, image attached.
    13·1 answer
  • Which type of heat transfer causes a person sitting by the fire to feel warm
    9·2 answers
  • Someone help me plz :))) brainliest
    7·1 answer
  • I need help 7th grade science
    12·1 answer
  • 1. Write the reaction rate expressions for the following reactions in terms of the disappearance of the reactants and the appear
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!