February 20, 2017

Homework Help: Chemistry questions

Posted by Jimmy on Wednesday, May 2, 2012 at 10:14am.

1) Calculate the mass of NaHCO3 required to generate 50mL of CO2, at 1 atm. pressure and 25*C.

Do I need to use PV=nRT?

where for n it will be both my n's from C and O2 together?

2) Solubility of CO2 in water at 25* is 0.145g in 100mL. Assuming the solubility of CO2 is the same in the acetic acid solution as in water, how much CO2 (in mL) might be dissolved in the 5,0mL used for each reaction?

Here do I simply do (0.145g / 100mL)x5.0 mL?

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