Solid state: silver density, Chemistry

Silver has a density of 10.5gcm-3 . The no. of silver atoms on a surface area of 10-12m2 can be expressed in scientific notation aas y x 10x.The value of x is ..?

Ans) d = mass/V
⇒ 10.5 g/cc means in 1 cc ⇒ 10.5 g of Ag is present.
Number of atoms of Ag in 1 cc ⇒ A
10.5 N
108 ×
In 1 cm , number of atoms of Ag 3
A
10.5 N
108
=
In 1 cm2, number of atoms of Ag
2 /3
A
10.5 N
108
In 10-12m2 or 10-8 cm2, number of atoms of Ag
2 / 3 24 2 / 3
8 8
A
10.5 N 10 1.05 6.022 10 10
108 108
= 1.5 × 107
Hence x = 7

Posted Date: 3/12/2013 2:18:13 AM | Location : United States







Related Discussions:- Solid state: silver density, Assignment Help, Ask Question on Solid state: silver density, Get Answer, Expert's Help, Solid state: silver density Discussions

Write discussion on Solid state: silver density
Your posts are moderated
Related Questions
Q. How to calculate Percent Yield? Ans. When you make cookies the recipe may claim to make a certain number of them, but usually in the end there are less. There might be

Which one of the following compound is ionic: (1) KCl                             (2) CH 4               (3) Diamond              (4) H 2 Ans: KCl

Calculate the free energy change of following reaction at298 kelvin H2+I2=2HI if the enthalpy change is 51.8816kj and the entropy change is 166.15j is this reaction thermodyanamica

tie line explain in with the help of phase rule




while gibing the ph and the volume intial and final how do we calculate the number of moles

synthesis of 2-amino,5-methyl phenol from mono substituted benzene?

(a) Write chemical equations for the reactions of glucose with (i) Acetic anhydride and (ii) ammoniacal silver nitrate solution. (b) Draw simple Fischer projections of D-g