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 a
In the ever-evolving landscape of education, students face increasing challenges to meet the demands of their academic pursuits. Striking a balance between extracurricular activities, personal commitments, and a rigorous academic curriculum can be overwhelming. Amidst this struggle, online homework help services have emerged as invaluable resources for students seeking academic excellence. Among these, HomeworkProWriters.com shines as a beacon of light, standing tall as the best website for homework help.
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?
At the core of HomeworkProWriters.com lies a team of exceptional and proficient writers. Each member of this distinguished cadre possesses advanced degrees in their respective fields, empowering them with the knowledge and expertise to tackle assignments from various academic disciplines. From complex mathematical problems to intricate literary analyses, their writers exhibit a remarkable ability to deliver impeccable content that adheres to the highest academic standards. One hallmark of the best homework help website is its comprehensive subject coverage. HomeworkProWriters.com leaves no academic stone unturned, catering to students across diverse subjects and levels of study. Whether it be fundamental sciences, nursing, humanities, social sciences, or technical disciplines, this platform ensures that no student is left without the support they need to excel.
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.
