A community for students.
Here's the question you clicked on:
 0 viewing
 2 years ago
If you have 400.0 mL of water at 25.00 °C and add 110.0 mL of water at 95.00 °C, what is the final temperature of the mixture?
 2 years ago
If you have 400.0 mL of water at 25.00 °C and add 110.0 mL of water at 95.00 °C, what is the final temperature of the mixture?

This Question is Closed

ganeshie8
 2 years ago
Best ResponseYou've already chosen the best response.2use enthalpy formula \(q = m \ c\ \Delta t\)

ganeshie8
 2 years ago
Best ResponseYou've already chosen the best response.2energy lost by hot water = energy absorbed by cool water

allikatt
 2 years ago
Best ResponseYou've already chosen the best response.0How do you set up the entire equation though?

ganeshie8
 2 years ago
Best ResponseYou've already chosen the best response.2.4 * c * (T25) = .11 * c * (T95)

allikatt
 2 years ago
Best ResponseYou've already chosen the best response.0Got it. Thanks so much!

ganeshie8
 2 years ago
Best ResponseYou've already chosen the best response.2yw ! remember this while doing enthalpy related problems : q system = q surroundings

allikatt
 2 years ago
Best ResponseYou've already chosen the best response.0Actually I have one more question. Why did you use .4 and .11 instead of 400 and 110?

ganeshie8
 2 years ago
Best ResponseYou've already chosen the best response.2yeah we can use 400 and 110 also here, it doesnt matter here

ganeshie8
 2 years ago
Best ResponseYou've already chosen the best response.2ideally we must convert mL to grams. becoz in enthalpy equation, m represents mass in grams.

ganeshie8
 2 years ago
Best ResponseYou've already chosen the best response.2the conversion to grams doesnt matter here since 1 mL = 1 g, for water

ganeshie8
 2 years ago
Best ResponseYou've already chosen the best response.2the correct way of putting the equation would be : 400g * c * (T25) = 110g * c * (T95)

allikatt
 2 years ago
Best ResponseYou've already chosen the best response.0I ended up getting 19.62 degrees, but it's incorrect :/

ganeshie8
 2 years ago
Best ResponseYou've already chosen the best response.2check ur calculation again

ganeshie8
 2 years ago
Best ResponseYou've already chosen the best response.2400g * c * (T25) = 110g * c * (T95) 400 * (T25) = 110* (T95)

allikatt
 2 years ago
Best ResponseYou've already chosen the best response.0That's what I got this time too. Thank you so much! I appreciate all your help.

ganeshie8
 2 years ago
Best ResponseYou've already chosen the best response.2u getting 19.62 still ? could u show ur calculation so that i can see whats happening at ur end :)

allikatt
 2 years ago
Best ResponseYou've already chosen the best response.0Nope, I got the correct answer this time. 40.1 degrees Celsius
Ask your own question
Sign UpFind more explanations on OpenStudy
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...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 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.