nyknicks191 nyknicks191
  • 12-01-2018
  • Chemistry
contestada

caculate the number if moles of the following: 800. g of Ca

Respuesta :

kenmyna
kenmyna kenmyna
  • 12-01-2018
mole   is  equal  to   mass  of  the  element  divided  by   molar  mass  of  the  element.  that   is
mole=mass/molar  mass
From  periodic  table calcium  has  a   molar  mass  of  40   g/mol
moles  is   therefore  =800g/40g/mol=20moles
Answer Link

Otras preguntas

Which fraction has a value greater than 0.4
What is the width of a rectangle with a length of 18 cm and an area of 72 cm²
John does a job in 16 hours. joe does the same job in 22. how long if they work together?'
If you were living in Canada in 1938, you might not have been able to change immigration policy. What would you have done, as a person of faith and compassion t
Simplify the expression (5x^4-3x^3+6x) - (3x^3+11x^2-8x) 5x^4-3x^3+6x-3x^3+11x^2-8x 5x^4-6x^3-11x^2+14x is this correct?
What is an example of a moral dilemma?
In a communist society, who owns the means of production? government businesspeople farmers banks
An acid has an acid dissociation constant of 2.8x10^-9. What is the base dissociation constant of its conjugate base? 2.8x 10^-23 3.6x10^-6 2.8x10^5 3.6 x10^22
What is the area of a circle if its radius is 13.4 in.? Round your answer to the nearest 10th. π = 3.142
Which wave is carrying the most energy?