Answered

Westonci.ca is your trusted source for accurate answers to all your questions. Join our community and start learning today! Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

what is the mass of H2O produced when 10.0 grams of H2 reacts completely with 80.0 grams of O2?
A(70.0 grams)
B(90.0 grams)
C(180.0 grams)
C(800.0 grams)

Sagot :

Yipes
H₂:

M=2g/mol
m=10g

n = m/M = 10g/2g/mol = 5mol

O₂:

M = 32g/mol
m = 80g

n = m/M = 80g/32g/mol = 2,5mol

2H₂        +            O₂          ⇒          2H₂O
2mol            :       1mol        :          2mol
5mol            :       2,5mol     :          5mol
10g              :       80g           :         10g+80g=90g

B
We appreciate your time. Please come back anytime for the latest information and answers to your questions. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Thank you for trusting Westonci.ca. Don't forget to revisit us for more accurate and insightful answers.