Monday
April 21, 2014

Homework Help: Science

Posted by Shangkary on Monday, October 17, 2011 at 2:38am.

Calculate the mass percent of sand, sodium chloride and copper (II) sulfate in a sample which yields the following data: mass of sample = 1.088g, mass of sand = 0.2255g, mass of copper (II) oxide = 0.1994g (assume 100% yield for each of the copper (II) reactions). The reactions are as follows:
CuSO4 (aq) + 2NaOH (aq) = Cu(OH)2 (s) + Na2SO4 (aq)
Cu(OH)2 (s) = CuO (s) + H2O (l)

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Chemistry - If the volume of ocean water 7.41*10^20 L contains 2.9 percent ...
Chemistry - calculate the mass percent of sand, sodium chloride and copper(ll) ...
Chemistry - The total volume of seawater is 1.5 times 10 to the twenty- first ...
chemistry - a mixture containing only sodium chloride and potassium chloride has...
science - if i had mixture of sodium carbonate and sand, and spilled some sodium...
Sciece (chemistry) - Sodium Chloride NaCl can be made by the reaction of sodium ...
College Chemistry - A mixture of the compounds sodium oxide and magnesium ...
chemistry - 25.0 g of sodium carbonate is combined with an excess of hdrochloric...
Chemistry College - A 79.1 g mixture of the compounds calcium chloride and ...
science - Q4.you will be asked to prepare 25.0 mL of a 0.019 M solution of ...

Search
Members