Thursday

January 29, 2015

January 29, 2015

Posted by **CC** on Saturday, February 13, 2010 at 12:17am.

What is the exact particle size of a colloid compared to the exact particle size of a solution.

A. over 1000nm compared to 0.1-1nm

B. 1-1000nm compared to 0.01-1nm

C. 0.10-1nm compared to 1-1000nm

D. 100nm compared to 1-100nm

I chose A but that was wrong so I was thinking it was B because it should be smaller than 1000nm but not sure.

- chemistry -
**DrBob222**, Saturday, February 13, 2010 at 1:14amI really have no idea how to answer this question. What is meant by size? Is that radius, diameter, spherical area, just what. First, I think you can eliminate C because it goes from small to large and the question calls for colloid to solution size. You know colloid must be larger. You already know A is not right. That leaves just B and D so that's a 50-50 chance at this point. I looked on the web and the articles I read don't define size any better but here is one that comes the closest to putting some limits on it at 1 nm to 1 micrometer. That would be 1 nm to 1000 nm which makes B in that range. I couldn't find anything about "size of atoms" That's nebulous anyway since electrons are in a probable zone. Here is the one site I thought might be worth considering.

http://old.iupac.org/reports/2001/colloid_2001/manual_of_s_and_t/node33.html

**Answer this Question**

**Related Questions**

Chemistry - How can the Tyndall effect be used to distinguish between a colloid ...

physics (non-calc) - A particle of charge 2.5x10(^-6)C is moving at 1000 m/sec ...

5 g vial - A 5 g igal reguires addinng 8.6 ml diluent to get concentration of ...

chemistry - 1 what's the Tyndall Effect and whats one example of this effect? 2...

calculus - in a time of t seconds, a particle moves a distance pf s meters from ...

science - what is the particle size of solutions and suspension?

Calculus - The velocity of a particle moving along the x-axis is given by f(t)=6...

calculus - The velocity of a particle moving along the t-axis is given by f(t)=2...

chemistry - How is colloid distinguished from a solution or a suspension?

Physics - A particle starts from the origin at t = 0 and moves along the ...