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#Basic math calculator code
Making decisions in your code - Conditionals.Basic math in JavaScript - Numbers and operators.Storing the information you need - Variables.What went wrong? Troubleshooting JavaScript.JavaScript - Dynamic client-side scripting.Assessment: Fundamental layout comprehension.Assessment: Typesetting a community school homepage.Assessment: Creating fancy letterheaded paper.Assessment: Fundamental CSS comprehension.HTML table advanced features and accessibility.From object to iframe - other embedding technologies.Assessment: Structuring a page of content.Since chloroform water concentrate is 1 part in 40, we take 1mL and dilute it to 40mL with water in order to obtain single-strength chloroform water. Suppose we have to produce volumes of single-strength chloroform water (50mL, 100mL, 200mL, 300mL, and 500mL) from chloroform water concentrate. For example – they are used to dilute in the ratio 1 part concentrated water to 39 parts water to produces a single strength product, then, we take one part concentrate and dilute it to 40 parts water. We can set up the following proportional set:Īnswer – We need to dilute 250mL of a 25% w/v solution to 625mL to produce a 10% w/v solution.Ĭoncentrated waters – such as rose water, peppermint water and chloroform water – are used to produce single-strength solutions. Let y mL be the final volume of the 10% w/v solution. After dilution, the amount of ingredient stays the same i.e. That’s why dilution calculations are so important and why the pharmacy student must have a thorough, comprehensive understanding. If we administer 5mL of the medicine to the patient, he/she now receives less active ingredient – meaning an impaired clinical and therapeutic impact. After all, adding additional solution disperses the active ingredient through a greater volume. However, the concentration of the medicine changes.įor example, a solution containing 100mg of active ingredient in 200mL of vehicle has a very different concentration if we add a further 200mL to the solution.
When we dilute a medicine, the active ingredient quantities remain unchanged. Though this review of dilutions is not intended to be exhaustive, it does provide a solid platform upon which you can further develop your knowledge of this important topic in pharmaceutical calculations. Here, we review examples from seven topics:
#Basic math calculator how to
As a pharmacy student, it’s vital, then, that you have a solid understanding of the implications that a dilution has, and how to calculate concentrations after a dilutions have taken place. With the dilution of a medicine, drug concentration changes. Dilutions are an important topic in pharmacy calculations.
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