Monday
November 24, 2014

Homework Help: chemistry

Posted by Anonymous on Thursday, August 2, 2012 at 12:17am.

Calculate the following quantities. (See the periodic table.)
(a) mass, in grams, of 2.54 10-2 mol of CdS


g

(b) number of moles of NH4Cl in 90.0 g of this substance


mol

(c) number of molecules in 5.081 10-2 mol C6H6


molecules

(d) number of O atoms in 4.72 10-3 mol Al(NO3)3

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - My question is what is the molar mass of 1.00 mol of Li? Can you ...
science - I need some help with my science homework. Well it is not really my ...
science - I need some help with my science homework. Well it is not really my ...
chemistry - Mg3N2 +6H2O- 3Mg(OH)2 + 2NH3-- How many grams of H2O are needed to ...
Chemistry - I have realized I don't understand Avagado's number at all My book ...
physics - A 22.0-L tank of carbon dioxide gas (CO2) is at a pressure of 9.40 105...
CHemistry....Please help - 1.SOLUBILITY: At 25C, the molar solubility of calcium...
chemistry - Someone please help me with these 2 problems!! I am going nuts! How ...
Chemistry - what is the mass of two moles of NaCl? You look up the exact numbers...
Chemistry - Solve the following pls. Calculate the number of grams in these ...

Search
Members