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
Gelneren [198K]
3 years ago
9

How do I find the average atomic weight of an element

Chemistry
2 answers:
fomenos3 years ago
7 0

Answer:

<em>To calculate the average atomic mass, multiply the fraction by the mass number for each isotope, then add them together.</em>

<em>hope this helps</em><em> </em><em><</em><em>3</em>

White raven [17]3 years ago
5 0
It is calculated by summing the masses of the element’s isotopes
You might be interested in
WHAT IS A ROCK?
Mars2501 [29]
A rock is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition and the way in which it is formed
5 0
3 years ago
Read 2 more answers
Which subscripts would properly complete the formula unit Al_N_?
MakcuM [25]
I believe that it would be Al1N1.
4 0
3 years ago
Is 13.0 mv at 25 °c. calculate the concentration of the zn2 (aq) ion at the cathode?
Andrews [41]
Answer: 
 Zn =⇒ Zn+2(0.10) + 2e- (anode)
 Zn+2(?M) + 2e- === Zn(s) (cathode)
 
 Zn + Zn+2(?M) ===⇒ Zn+2(0.10) + Zn 
 E = E^o -0.0592 log Q; in this case E^o is zero. 
 E = - 0.0592 /n logQ where n is the number of electrons transferred, in this
case n = 2 
 23 mV x 1 volt/1000mv = 0.023 Volts 
 0.023 = -0.0592 / 2 log(0.10) / [Zn+2]
 0.023 = -0.0296 { log 0.10 – log [Zn+2] }
 0.023 = -0.0296{ -1 - log[Zn+2] }
 0.023 = +0.0296 + 0.0296log[Zn+2]
 -0.0066 = 0.0296log[Zn+2]
 -0.22= log[Zn+2]
 [Zn+2] = 10^-0.22 = 0.603 Molar

6 0
3 years ago
The latent heat of melting is 80 calories for 1 gram of ice. if 1 gram of ice absorbs 60 calories what do i get?
Eva8 [605]
Latent heat of melting is the energy that a solid absorbs to change its phase as its liquid. During this process, since all energy is used to change the phase, the temperature is constant.

Here the latent energy of melting for 1 g of ice is 80 calories and that 1 g of ice only absorbed 60 calories. hence the phase is not changed because it requires more 20 calories to melt.

Hence 1 g of ice remains as its solid phase (ice). 
3 0
3 years ago
How many square km is 2.5 x 107 m2 (don't write your answer in scientific notation)
jek_recluse [69]

Answer:

0.0002675 square km that's all (if you want it in feet just comment below this)

Explanation:

3 0
3 years ago
Other questions:
  • How many different isomers can be derived from ethylene if two hydrogen atoms are replaced by a fl uorine atom and a chlorine at
    12·1 answer
  • (scientific investigations) help please.
    12·1 answer
  • How did seed availability affect traits of individuals in the medium ground finch population of the galapagos islands
    14·1 answer
  • Read the descriptions below of two substances and an experiment on each. Decide whether the result of the experiment tells you t
    15·1 answer
  • How was the earth crust percentage determined ?
    15·1 answer
  • What is the volume at STP of 3.44 x 1023 molecules of CO2
    7·1 answer
  • How many grams are there in 12.04 x 1024 molecules of H2O2?​
    15·1 answer
  • Which of these statements is false?
    9·1 answer
  • Tom pushes on a 50-kilogram box with a force of 25 newtons. Assuming the surface on which the box moves is frictionless, at what
    11·1 answer
  • 5.20763 to three significant figures​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!