A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing


  • 5 years ago

In a calorimeter, Magnesium Chloride is dissolved in water with the following reaction: MgCl2s--Mg+2+2Cl-. The calorimeter holds 625g water. The initial temp was 20c but raises to 28c after 12.8 grams are added. What is deltaH for the chemical reaction ?

  • This Question is Closed
  1. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Since delta T is positive Q will be calculated as positive. That indicates reaction is endothermic. We are using heat to break bonds here, that's how you can keep in mind the character of the equation. Q = m.c. delta(T) We have 625g of water, the c of water is (4.184 J/g-C) Delta T is 8C (T2-T1) Q(joules) = 625. 4.184. 8

  2. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...


  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.