Q4: 50 g of ananti-inflammatoryointmentwas found to contain 1.1 g of the main activeingredient. What is the percent by mass of theactive ingredient in this ointment?Q5: 50 g of a 26% (m/m) solution was mixedtogether with 130 g of a 17% (m/m) solution.What is the percentage concentration by massof the new solution?Q6: A 0.75 L bottle of vinegar contains 4%(v/v) of ethanoic acid. What volume ofethanoic acid does the bottle of vinegarcontain? Give your answer to two decimalplaces.

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Q4: 50 g of an anti-inflammatory ointment was found to contain 1.1 g of the main active ingredient. What is the percent by mass of the active ingredient in this ointment?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Q4: 50 g of an
anti-inflammatory
ointment
was found to contain 1.1 g of the main active
ingredient. What is the percent by mass of the
active ingredient in this ointment?
Q5: 50 g of a 26% (m/m) solution was mixed
together with 130 g of a 17% (m/m) solution.
What is the percentage concentration by mass
of the new solution?
Q6: A 0.75 L bottle of vinegar contains 4%
(v/v) of ethanoic acid. What volume of
ethanoic acid does the bottle of vinegar
contain? Give your answer to two decimal
places.

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