Question

(b) (i) An atom may be assumed to be a sphere. Given that the diameter of the atom is 140(5) pm, calculate the volume (m2) of the atom and the error associated. 13 marks] Page 1 of 3 ANALYTICAL CHEMISTRY II - CHEM 2041Y(3) (ii) Brass contains 94.6(3)% of copper by mass. What is the other component of brass? Calculate the mass of the other component and the error associated in 4 marks] 1.0334(5) g of brass (iii) Given that z [6 marks] Show that the propagated error is z due to errors in x and y is-=l--(Y)T Mention any assumptions.

Answer 1

1)
given dairneter (D): 14015m. ner 6 1z1 36 026.GYpm つ g,7707 assoc,afe (5)3 0 001X r loo
​​​​​​2)
最. ㄨㄟ av 10-0558 ( 2