Understanding Enthalpy in Neutralization Reactions

Part 1. Introduction to temperature changes of solutions
When substances in solution are mixed together reactions can occur and can lead to heat
being transferred either into or out of the system. When heat is transferred into the system the
reaction is absorbing heat and is called endothermic; conversely, when heat is transferred out of
the system the reaction is releasing heat and is called exothermic. Many reactions are exothermic
and one example is a reaction between an acid and a base, called a neutralization reaction.
When acids and bases react with each other the products are salt and water. Neutralization
reactions can be partial or complete and the amount of heat generated depends on how much
neutralization occurs; in terms of moles, how much neutralization occurs is determined by the
limiting reagent, which in this case is either the acid or the base. During a partial neutralization
salt and water are produced, however, there will be some acid or base that will remain unreacted.
The maximum heat will be produced in a complete neutralization, when neither the acid nor the
base is a limiting reagent. In this experiment you will record the temperature changes caused by
mixing equimolar solutions of HCl, the strong acid, and NaOH, the strong base in different
proportions, and determine the heat of neutralization for the reaction.
Part 2. Procedure (note: do steps 2 and 3 together)
1. Obtain the volumes of HCl and NaOH needed for each mixture shown in Data Table 1
using two 20.0 mL graduated cylinders (one for HCl, one for NaOH), and
2. Mix these solutions in a 25 or 50 mL beaker labeled “mix” in the same style as shown in
Figure 1 according to the different volumes indicated in Data Table 1.
3. Record the room temperature once and the temperatures of the mixtures upon mixing in
Data Table 1. Discard mixtures in a 250 mL waste beaker after each determination. Rinse
and dry the “mix” beaker in-between determinations.
4. Plot the results in Figure 2.
5. Discard the accumulated waste in the proper container when the experiment is complete.

Get 20% Discount on This Paper
Pages (550 words)
Approximate price: -

Try it now!

Get 20% Discount on This Paper

We'll send you the first draft for approval by at
Total price:

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

Quality Custom Writers has assembled a team of highly skilled writers with diverse experience in the online writing circles. Our aim is to become a one stop shop for all your Academic/ online writing. Check out below our amazing service!


Essay Writing Services

At Quality Custom Writers, we prioritize on all aspects that creates a good grade such as impeccable grammar, proper structure, zero-plagiarism, and conformance to guidelines. The principal purpose of essay writing is to present the author's evaluation concerning a singular subject about which they have made. Since Professionalism is the mother of every success, try our team of experienced writers in helping you complete your essays and other assignments.


Admission Papers

You have been trying to join that prestigious institution you long yearned for, but the hurdle of an admission essay has become a stumbling block. We have your back, with our proven team that has gained invaluable experience over time, your chance of joining that institution is now! Just let us work on that essay.How do you write an admission essay? How do you begin the essay? For answers, try Quality Custom Writers Now!


Editing and Proofreading

Regardless of whether you're pleased with your composing abilities, it's never an impractical notion to have a second eye go through your work. The best editing services leaves no mistake untouched. We recognize the stuff needed to polish up a writing; as a component of our editing and proofreading, we'll change and refine your write up to guarantee it's amazing, and blunder free. Our group of expert editors will examine your work, giving an impeccable touch of English while ensuring your punctuation and sentence structures are top-notch.


Technical papers

We pride ourselves in having a team of clinical writers. The stringent and rigorous vetting process ensures that only the best persons for job. We hire qualified PhD and MA writers only. We equally offer our team of writers bonuses and incentives to motivate their working spirit in terms of delivering original, unique, and informative content. They are our resources drawn from diverse fields. Therefore your technical paper is in the right hands. Every paper is assessed and only the writers with the technical know-how in that field get to work on it.


College Essay Writing

If all along you have been looking for a trustworthy college essay service provider that provides superb academic papers at reasonable prices, then be glad that you search has ended with us. We are your best choice! Get high-quality college essay writing from our magnificent team of knowledgeable and dedicated writers right now!


Quality Assignment/Homework Help

We give the students premium quality assignments, without alarming them with plagiarism and referencing issues. We ensure that the assignments stick to the rules given by the tutors. We are specific about the deadlines you give us. We assure you that you will get your papers well in advance, knowing that you will review and return it if there are any changes, which should be incorporated.

× How can I help you?