![logan12345677885675](/avatars/9159.jpg)
logan12345677885675
19.02.2020 •
Chemistry
The concentration of gallium in silicon is 5.0 × 10−7 at%. What is the concentration in kilograms of gallium per cubic meter?
Solved
Show answers
More tips
- H Health and Medicine 5 Simple Steps to Quit Smoking for Good...
- C Computers and Internet How to Download Videos from YouTube? Simple Steps to Download Any Content...
- H Health and Medicine What is the Normal Blood Sugar Level in a Healthy Person?...
- S Style and Beauty How to Get Rid of Acne: Scientifically Proven Methods...
- L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
- C Computers and Internet How to Delete Your Account on Odnoklassniki...
- H Health and Medicine 10 Simple and Effective Tips on How to Lose Weight in a Week...
- F Food and Cooking What s the Best Rice for Cooking Plov?...
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics Secrets of NATO: Which Countries are Part of the Alliance?...
Answers on questions: Chemistry
- M Mathematics Aswimming pool has a diameter of 32 feet. what is the area of the swimming pool that needs to be covered by a tarp? use 3.14 to approximate for π . enter your answer...
- M Mathematics The table shows the value of the electricity they used and the value of the electricity they generated each week for a month. What amount is due for this month? Used...
- P Physics Which mesurments are equal to 321 decentimeters...
- M Mathematics What is the product of x2 - 2x + 3 and x + 1...
- S SAT When muscles find strength in stillness it is called...
Ответ:
[ Ga ] = 1.163 E-8 Kg/m³
Explanation:
%wt = [(mass Ga)/(mass Si)]*100 = 5.0 E-7 %⇒ 5.0 E-9 = m Ga/m Si
assuming: m Si = 100 g = 0.1 Kg
⇒ m Ga = (5.0 E-9)*(0.1 Kg) = 5 E-10 Kg
∴ density (δ) Si = 2.33 Kg/m³
⇒ Volume Si = (0.1 Kg)*(m³/2.33 Kg) = 0.043 m³
⇒ [ Ga ] = (5 E-10 Kg)/(0.043 m³) = 1.163 E-8 Kg/m³
⇒ [ Ga ] =
Ответ:
Creo que son 2 triángulos y 3 trapecios, que es un prisma triangular.
¡Espero que esto ayude!