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Chemistry homework help

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I have chem exam

hello I have chem exam and I need help today at 5 pm... the time is one hour and half... the topic in the attachment.. if you are able to help that would be great if not please do not waist my and your time 

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CH 17 and 18 PT + Q

General Chemistry Homework

Hello, I have a homework of 25 question, or problem. and I am welling to pay 25 DOLLARS for this homework.

the homework is about chapter 4 "Three Major classes of Chemical Reactions".

need urgently

Groundwater containing 60 mg/L of CO2 at 10oC is pumped through a spray nozzle aerator, and the CO2 concentration is reduced to 5.6 mg/L. If the alkalinity of the water is 200 mg/L as CaCO3, and the initial pH is 6.93,  what is the  pH of the water after CO2 removal? Assume the water temperature remains at 10oC and that ionic strength corrections can be neglected.

 

need urgently

Groundwater containing 60 mg/L of CO2 at 10oC is pumped through a spray nozzle aerator, and the CO2 concentration is reduced to 5.6 mg/L. If the alkalinity of the water is 200 mg/L as CaCO3, and the initial pH is 6.93,  what is the  pH of the water after CO2 removal? Assume the water temperature remains at 10oC and that ionic strength corrections can be neglected.

 
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