analytical assignment 0

/in /by

Nursingpapertutors.com stands out as a reputable writing company that delivers high-quality papers specifically designed for nursing students. With its specialization in the nursing field, commitment to quality, customization, and originality, timely delivery, dedicated customer support, and emphasis on confidentiality, Nursingpapertutors.com provides invaluable academic support to nursing students. As a reliable partner in their educational journey, Nursingpapertutors.com helps nursing students excel academically and prepares them to become competent and knowledgeable healthcare professionals.

A plant manufacturing nails and screws uses a large pool (volume = 10,000 L) to collect and treat its residual waste water before discharging it in a nearby stream.  The manufacturing process makes use of a strong acid (HCl) and a weaker one (phosphoric acid, H3PO4; pKa1 = 2.148, pKa2 = 7.20, pKa3 = 12.15), before discharging them in the pool for treatment (neutralization).  Once the pool is filled to its maximum capacity, a technician measures the chlorine and phosphorus concentrations in the waste water to be 0.5 M and 1.0 M, respectively.  Assume (i) that chlorine and phosphorus come only from HCl and phosphoric acid, respectively, and (ii) that no H+ was consumed (or neutralized) in the manufacturing process.

 

(a)   Knowing that the technician has to bring the pH of the waste water back to a minimum of 7.2 before discharging it in the stream, what is the minimum amount (in kg) of NaOH(s) (40 g/mol) that he has to add to the pool before discharging the waste water in the stream?

(b)   What will be the pH of the waste water following the addition of 200 kg of NaOH?

(c)    What will then be the number of moles of each phosphorus species (H3PO4, H2PO4–, HPO42- and PO43-) in the pool after the addition of NaOH?

(d)   What will be the pH of the waste water if the technician adds 10.0 kg of NaOH in excess to what is needed to bring the pH to 7.2?

Nursingpapertutors.com places a premium on meeting deadlines. The company understands the significance of timely paper submissions for nursing students. To uphold their commitment to punctuality, Nursingpapertutors.com employs a well-organized workflow and efficient team coordination. This ensures that students receive their papers promptly, affording them ample time for review and making any necessary adjustments. Providing exceptional customer support is central to Nursingpapertutors.com’s mission. The company recognizes that nursing students may have queries or require assistance at any time of the day. As such, Nursingpapertutors.com offers 24/7 customer support to promptly address any concerns, clarify instructions, and offer updates on the paper’s progress. Their responsive support team ensures a seamless and positive experience for every student.

 

 
Do you need a similar assignment done for you from scratch? We have qualified writers to help you. We assure you an A+ quality paper that is free from plagiarism. Order now for an Amazing Discount!
Use Discount Code "Newclient" for a 15% Discount!

NB: We do not resell papers. Upon ordering, we do an original paper exclusively for you.