Sign In
Ask Question
Noel Lara
Chemistry
21 February, 22:27
How many grams of Br are in 335g of CaBr2
+2
Answers (
1
)
Heaven Howard
21 February, 22:36
0
The answer is 267.93 g
Molar mass of CaBr2 is the sum of atomic masses of Ca and Br:
Mr (CaBr2) = Ar (Ca) + 2Ar (Br)
Ar (Ca) = 40 g/mol
Ar (Br) = 79.9 g/mol
Mr (CaBr2) = 40 + 2 * 79.9 = 199.8 g/mol
The percentage of Br in CaBr2 is:
2Ar (Br) / Mr (CaBr2) * 100 = 2 * 79.9 / 199.8 * 100 = 79.98%
Now make a proportion:
x g in 79.98%
335 g in 100%
x : 79.98% = 335 g : 100%
x = 79.98% * 335 g : 100%
x = 267.93 g
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Find an answer to your question 👍
“How many grams of Br are in 335g of CaBr2 ...”
in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
Which of the following choices is an example of a nonvascular plant? A. Moss B. Grass C. Trees D. Flowers
Answers (1)
What does newton's third law say about why momentum is conserved in collisions? A. Equal forces act in equal times, so the change in momentum for both objects must be equal. B.
Answers (2)
How many different kinds of monomers are there in nucleic acids?
Answers (1)
How are bacteria and humans different?
Answers (1)
At STP, what is the total volume occupied by a 2.00-gram sample of H2 (g)
Answers (1)
New Questions in Chemistry
Which stament best describes a solution
Answers (1)
Which answer accurately describes the difference between speed and velocity? Read each answer choice carefully. Question 4 options: A. If speed is constant, then velocity is also constant. B. Speed requires direction.
Answers (1)
Least reactive element of period 3
Answers (2)
A chemical formula shows the kind and number of Atoms that form a what? compound, mixture, solution, or suspension
Answers (1)
What gas was used as a deadly posiosn in world war 1?
Answers (1)
Home
»
Chemistry
» How many grams of Br are in 335g of CaBr2
Sign In
Sign Up
Forgot Password?