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
tino4ka555 [31]
3 years ago
13

What is the formula mass of beryllium chloride , becl2?

Chemistry
1 answer:
Semmy [17]3 years ago
7 0
To determine the formula mass of beryllium chloride, BeCl₂, we start up with the basis of one mole first. 

Basis: 1 mole BeCl₂
To determine the molar mass of BeCl₂, we add up the mass of one mole of beryllium and two moles of chlorine. 

    1 mol Be = 9 g/mol 
     1 mol of Cl = 35.45 g/mol

Solving,
    molar mass of BeCl₂ = (1 mol Be)(9 g/mol) + (2 mols Cl)(35.45 g/mol)
             molar mass of BeCl₂ = 79.9 g

Then, we take into consideration that 1 mol is equal to 6.022 x 10²³ formula units. 
            formula mass BeCl₂ = (79.9 g/mol)(1 mol/6.022 x 10²³ formula units)
               formula mass of BeCl₂ = 1.33 x 10⁻²² g/formula unit

<em>Answer: 1.33 x 10⁻²² g/formula unit</em>
You might be interested in
I need help please ASAP
Yuliya22 [10]

Answer:

the name for NO is nitrogen monoxide

6 0
2 years ago
Can somebody help and answer which ones are connected to each other. Correctly!
igor_vitrenko [27]

nuclear power--used to turn turbines...

fossil fuels--burned to provide energy that is....

renewable energy--energy that with come back after use

outlet--a device....

steam--nuclear reactors....

I'm not sure but I tried lol,lemme know if I'm wrong :D

3 0
3 years ago
Which is the correct Lewis structure for carbon monoxide?
LuckyWell [14K]
<span>The Lewis structure for CO has 10 valence electrons. For the CO Lewis structure you'll need a triple bond between the Carbon and Oxygen atoms in order to satisfy the octets of each atom while still using the 10 valence electrons available for the CO molecule.</span>
7 0
3 years ago
What volume of water has the same mass as 9.0m3 of ethyl alcohol?
Triss [41]
This question requires the knowledge of density. 

The density of ethyl alcohol = 789 kg m⁻³
The density of water = 1000 kg m⁻³

Density = Mass / Volume 

By applying ethyl alcohol,
    789 kg m⁻³ = Mass / 0.9 m³
         Mass     = 710.1 kg
hence the mass of 0.9 m³ ethyl alcohol is 710.1 kg.

Then by applying water,
     1000 kg m⁻³ = 710.1 kg / Volume
      Volume        = 0.7101 m³
                          = 0.7 m³
hence the equal water volume is 0.7 m³
8 0
3 years ago
How many parts per million of lead is found in 250 ml of water if there is 1.30g of lead in the water? 1ml=1g
SSSSS [86.1K]

Answer:

5200 ppm

Explanation:

As per the definition, parts per million of a contaminant is a measure of the amount of mass of contaminant present per million amount of the solution. It is denoted by ppm.

Given in the question,

Water = 250 ml = 250 g

Lead = 1.30 g

So,

ppm of Lead = \frac{Lead}{Water} \times 10^6 = \frac{1.30}{250} \times 10^6 = 5200 ppm

So, as calculated above, there is 5200 ppm of lead present in 250 ml of water.

6 0
3 years ago
Other questions:
  • The atomic masses of two isotopes of silver are 105 and 111. The chemical symbol for silver is Ag. (a) What are the number of pr
    12·1 answer
  • When a substance is oxidized it is called a(n): select one:
    7·1 answer
  • Organic Chemistry, 7e by L. G. Wade, Jr. Reactions of Alkenes Christine Hermann Radford University Radford VA Copyright © 2010 P
    13·1 answer
  • Is ammonia an alkali or base?​
    9·1 answer
  • What happened when a drop of the sodium carbonate solution was mixed with the magnesium sulfate?
    6·1 answer
  • Anyone know this I Need help
    14·1 answer
  • 1 gallon =3.785 L how many liters of gasoline will fill a 10.00 tank
    10·1 answer
  • At a particular temperature, K = 2.0 × 10-6 for the reaction
    6·1 answer
  • 5.(08.02 MC)
    5·1 answer
  • Use the Rydberg equation to find the wavelength (in Å) of the photon absorbed when an electron in an H atom undergoes a transiti
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!