Help me please21 Available is tobramyoin 40 mg/ml. How much tobramycin (in milliliters) is needed for the following prescription Tobranycin 5 mg/ml. 5 ml?25. How much (in milliliters) of a 1% w/v solution of phenylmerourie nitrate may be uned in preparing a 100-ml. prenoription requiring 1:50,000 w/v ofpherylmercuric nitrate as a preservative?27. How much water (in milliliters) should be added to 1L of 1:3000 w/v solution to make a 1: 8000 w/v solution?49. How much (in milliliters) of a 2% w/v solution of lidocaine hydrochloride should be used in preparing 500 mt. of a solution containing 4 mg of lidocainehydrochloride per milliliter of solution?

The given problem can be determined by suing the molarity equation as; M1V1=M2V2 Where, M1 is the…

Answered: 21 Available is tobramycin 40 mg/ml.…

21 Available is tobramycin 40 mg/ml. How much tobramycin (in milliters) is needed for the following presoription Tobramycin 5 mg/ml 5 mt?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter31: Introduction To Analytical Separations

Section: Chapter Questions

Problem 31.17QAP

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

Help me please
21 Available is tobramyoin 40 mg/ml. How much tobramycin (in milliliters) is needed for the following prescription Tobranycin 5 mg/ml. 5 ml?
25. How much (in milliliters) of a 1% w/v solution of phenylmerourie nitrate may be uned in preparing a 100-ml. prenoription requiring 1:50,000 w/v of
pherylmercuric nitrate as a preservative?
27. How much water (in milliliters) should be added to 1L of 1:3000 w/v solution to make a 1: 8000 w/v solution?
49. How much (in milliliters) of a 2% w/v solution of lidocaine hydrochloride should be used in preparing 500 mt. of a solution containing 4 mg of lidocaine
hydrochloride per milliliter of solution?

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