Calculate the volume of one sweet. Calculate the volume of the jar and then divide the volume of the jar by the volume of a sweet.
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1) Calculate the area 2) Calculate the volume 3) Divide the area by the volume to get the ratio
The volume of the sample whose mass is 20 g and density is 4 g/ml is 5 milliliters.
You measure or calculate the surface area; you measure or calculate the volume and then you divide the first by the second. The surface areas and volumes will, obviously, depend on the shape.
Volume of a sample = (its mass) divided by (its density)
Density of a substance = (mass of a sample of the substance) divided by (volume of the same sample)
To calculate the percent of air content in a soil sample, you need to determine the volume of air in the soil and divide it by the total volume of the sample. This can be done by measuring the bulk density of the soil and the particle density, then subtracting the particle density from the bulk density to get the volume of air. Finally, divide the volume of air by the total volume and multiply by 100 to get the percentage.
density= mass/volume 30g/7500cm3=.004g/cm3
This depends on the nature and form of the sample:- for a solid with a regulate shape weight the sample and calculate the volume from the dimensions; density is the ratio between mass and volume. You can measure the volume of great sample by water displacement.- for other solids use a pycnometer- for liquids use a densimeter (simple or electronic)etc.
To calculate the mass of the sample using dimensional analysis, you would use the expression: mass = volume × density Substitute the given values for volume (10.0 mL) and density (7.87 g/mL) into the expression to calculate the mass of the iron sample.
To determine the density of graphite, you need to measure the mass and volume of the graphite sample. You can then calculate the density by dividing the mass of the sample by its volume. The density of graphite is around 2.2 g/cm³.
A core sample is a tubelike sample of a substance for scientific study. Core samples can be of rock, earth, plants, or even ice. Here are some sentences.The core sample showed what the earth was like millions of years ago.The scientist collected a core sample from the giant redwood tree.A core sample from the glacier might contain trapped pollen or microbes.
1. Apparent density: - weight a graduated cyllinder - put the sample in the graduated cyllinder up to a given volume (note this volume) - weight the graduated cyllinder with the sample - calculate the mass of the powder by difference - the density is the ratio mass of the sample/volume of the sample 2. True density of a powder: you need a helium pycnometer.
To calculate the percent chloride using the Volhard method, you measure the excess silver nitrate used to titrate the chloride ions in the sample. You then use the volume of excess silver nitrate and the molarity of the silver nitrate solution to calculate the moles of chloride present. Finally, calculate the percent chloride by dividing the moles of chloride by the sample weight and multiplying by 100.
Find the volume of the sample (Length times width times height) and multipy by the density coefficient.
If you only know mass, you don't have enough information to calculate density.You also need to know the volume of the piece that has that mass.Once you have both of those numbers, the density is(Mass) divided by (Volume)of the same sample.