1 answer

Tea Calculate the approximate final temperature of water in a coffee cup calorimeter if 35:9 stor...

Question:

Tea Calculate the approximate final temperature of water in a coffee cup calorimeter if 35:9 stor heat is added to 420.0 g of
Tea Calculate the approximate final temperature of water in a coffee cup calorimeter if 35:9 stor heat is added to 420.0 g of water initially at a temperature of 22.60 °C (the specific heat of water is 4.184 J/gK).

Answers

Given:

Q = 33.9 KJ = 33900 J

m = 420 g

C = 4.184 J/g.oC

Ti = 22.6 oC

use:

Q = m*C*(Tf-Ti)

33900 = 420.0*4.184*(Tf-22.6)

Tf -22.6 = 19.29 oC

Tf = 41.89 oC

Answer: 41.89 oC

.

Similar Solved Questions

1 answer
The Newman Projections below all represent 2.3.3-trimethylhexane. Use them to answer the following four questions. Η...
The Newman Projections below all represent 2.3.3-trimethylhexane. Use them to answer the following four questions. Η H2 V VI VII VIII 20. Which Newman Projection represents the most stable conformation of 2,3,3-trimethylhexane looking down the 3-4 C-C bond? a. b. c. VIII I VII d. e. III IV 21. O...
1 answer
Efficient cash management will lead to increase in cash flows and slowing cash outflows. Discuss
Efficient cash management will lead to increase in cash flows and slowing cash outflows. Discuss...
1 answer
Classify these substances. More than one answer may apply in each case.
Sapling Learning Classify these substances. More than one answer may apply in each case. element element compound O compound pure substance pure substance homogeneous mixture homogeneous mixture heterogeneous mixture heterogeneous mixture solution solution N2O Air (mostly N2 and O2) element element ...
1 answer
SkyChefs, Inc., prepares in-flight meals for a number of major airlines. One of the company's products...
SkyChefs, Inc., prepares in-flight meals for a number of major airlines. One of the company's products is grilled salmon in dill sauce with baby new potatoes and spring vegetables. During the most recent week, the company prepared 6,600 of these meals using 1,950 direct labor-hours. The company ...
1 answer
Exercise 5-20 Effect of inventory cost flow on ending inventory balance and gross margin Dugan Sales...
Exercise 5-20 Effect of inventory cost flow on ending inventory balance and gross margin Dugan Sales had the following transactions for jackets in 2014, its first year of operations: Jan. 20 Apr. 21 July 25 Sept. 19 Purchased 80 units @ $15 Purchased 420 units @ $16 Purchased 250 units @ $20 Purchas...
1 answer
4) There are 3 different N atoms in the semicarbazide, and yet only one of them...
4) There are 3 different N atoms in the semicarbazide, and yet only one of them is the site that does the nucleophilic attack. Why is that N atom most reactive? Describe using structures. Introduction Many reactions can take more than one course but the preferential formation of only one of the poss...
1 answer
How do you simplify #sin(sin^-1(1/2)+cos^-1(3/5))#?
How do you simplify #sin(sin^-1(1/2)+cos^-1(3/5))#?...
1 answer
QUESTION 6 What is the pH of a buffer that has 0.250 mol HF and 0.100...
QUESTION 6 What is the pH of a buffer that has 0.250 mol HF and 0.100 mol NaF in 1.00 L that has 0.020 mol NaOH added to it? Ka=6.4x10-*...
1 answer
How would I find the total solution to this initial value problem? Z"-- 10.= 100+ 12.5;...
How would I find the total solution to this initial value problem? Z"-- 10.= 100+ 12.5; 7(0) = 5, 1'(0) = -0.5...
1 answer
Following are age and price data for 8 randomly selected ambulances between 1 and 6 years...
Following are age and price data for 8 randomly selected ambulances between 1 and 6 years old.​ Here, x denotes​ age, in​ years, and y denotes​ price, in hundreds of dollars. Use the information to complete parts​ (a) through​ (f). x 6 1 6 2 6 2 ...
1 answer
1. Anharmonic oscillator. Hydrogen bromide, 'HiBr, vibrates approximately according to a Morse potential VM(r) = Dell-e-w2De)1/2 (r-rej2 with De= 4.8 10 eV, re= 1.4 1 44Ă, and k= 408.4 N m-1. Wit...
1. Anharmonic oscillator. Hydrogen bromide, 'HiBr, vibrates approximately according to a Morse potential VM(r) = Dell-e-w2De)1/2 (r-rej2 with De= 4.8 10 eV, re= 1.4 1 44Ă, and k= 408.4 N m-1. With ω,-VRA, the energies of the stationary states in a Morse potential are En (hwo) 4D ho(n+...
1 answer
Please help Please help answer these questions (Show your work on the math questions.) Three year...
Please help Please help answer these questions (Show your work on the math questions.) Three year old Danica arrives to your oncology floor. She is currently receiving chemotherapy for bilateral Wilm's Tumor that she was diagnosed with six weeks ago. Her surgery is scheduled next week. Her CC (c...
1 answer
If we assume the number of visits to a blog has a Poisson distribution, with average...
If we assume the number of visits to a blog has a Poisson distribution, with average of 99 visits per second. Let X be the waiting time until one visit to the blog: a) What distribution does X follow? State the probability density function of x and give an appropriate graphing rage of x for f(x) b) ...