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Calculate the displacement volume for a quantity of powder equivalent to the 250mg dose of drug X. If there is 250mg in each 5mL dose, 100mL has 20-times this – that is to say, 5,000mg. If 68mL is needed, it means 5,000mg displaces the remaining 32mL of water.
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We can use this same technique to determine the density of the fluid if the density of the coin is known. All of these calculations are based on Archimedes’ principle, which states that the buoyant force on the object equals the weight of the fluid displaced.
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To calculate density, use the equation D=m/v. The volume of the sample is equal to the volume of water displaced, which is 85 – 60, or 25 mL. Substituting values into the equation for Density gives D=50/25, or 2 cm3. ACTIVITY 5. On the first page of this activity sheet, you made a prediction about the density of a small, medium, and long rod.
21 cze 2016 · Learning objectives. By the end of this chapter you will be able to: express a liquid in either weight or volume using density values. define and use the term ‘displacement value’. Define and use the term ‘displacement volume’. calculate the amount of base required when making suppositories and pessaries. At 20°C, 1 mL of water weighs 1 g.
21 lis 2023 · Explore water displacement and the water displacement definition. Discover the water displacement formula and learn to calculate the density and volume of an object using the water...
Directions: Look at the graduated cylinders below. Then, record the volumes without and with the object. Finally, using the formula V. f-Vi(final volume - initial volume) calculate the volume of each object. Remember to label units on your answers. Initial Volume (V(Vi)=________ . Final Volume (Vf)= _________ . Object’s volume = __________ .
