Question 5 of 25 How does peer review affect research?
O A. An experiment will not be repeated by others if it has been peer-
reviewed.
O B. Experimental results will be published only before they have been
peer-reviewed.
C. Experimental results are possible only if they have been peer-
reviewed.
D. Experimental results will be trusted by the scientific community
only if they have been peer-reviewed.
SUBMIT

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.

може ли да зареждате повече информация, моля