[tanner.e]

I did a chem lab today and I have a bunch of questions to see if I'm on the right track with the Lab report.

1. what is the balanced precipitation reaction that I was working with?   I used the products Na₂CO₃ , Co(NO₃)₂ , H20  and (CH₃)₂CO 

would the reaction be Na2CO3+Co(NO3)2+H2O + (CH3)2CO ----> ...  bit confused how to make the product but it made a solid while all the other substances were liquids.

2. How many moles of cobalt nitrate do you use for the reaction?

where I have the volume of 10 mL of Co(NO3)2  .   I did n= 10mL * 1 g Co(NO3)2/ 1 mL Co(NO3)2  * 1 mol Co(NO3)2 / 166.94 g Co(NO3)2  = 0.0599 moles which I dont think sounds right. Then do I multiply that by the avagedros number?

Thanks for any help

[Borek]

Please elaborate on the procedure. You have not listed enough information to let us try to help.

[sjb]

I did a chem lab today and I have a bunch of questions to see if I'm on the right track with the Lab report.

1. what is the balanced precipitation reaction that I was working with?   I used the products Na₂CO₃ , Co(NO₃)₂ , H20  and (CH₃)₂CO 

would the reaction be Na2CO3+Co(NO3)2+H2O + (CH3)2CO ----> ...  bit confused how to make the product but it made a solid while all the other substances were liquids.

2. How many moles of cobalt nitrate do you use for the reaction?

where I have the volume of 10 mL of Co(NO3)2  .   I did n= 10mL * 1 g Co(NO3)2/ 1 mL Co(NO3)2  * 1 mol Co(NO3)2 / 166.94 g Co(NO3)2  = 0.0599 moles which I dont think sounds right. Then do I multiply that by the avagedros number?

Thanks for any help

Was the cobalt nitrate a solution, or is it really a liquid?