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A sample of pure zinc has a mass of 4.50 g. Calculate its volume?
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A sample thought to be pure lead occupies a volume of 15.0 mi.and has a mass of 160.0g.determine the density and is the sample pure lead?
The density is 10.7 g/mL. The sample is not pure lead because the density of pure lead is 11.3 g/mL.
Why density is the criteria for purity with respect to chemistry?
Mass and volume are extensive properties, which are dependent upon the size of the sample. A larger sample will have a greater mass and volume than a smaller sample. Density is an intensive property, which does not depend on the size of the sample. Density is a ratio of mass to volume, which does not vary with the size of the sample. The density of a larger sample will be the same as the density of a smaller sample.
Calculate theh mass of a sample of pure silver density equals 10 49 g cm that has a volume of 12.99cm?
Mass [g] (Ag)=(10.46g Ag/1cm Ag)(12.99cm Ag/1) The "centimeters" units cancel out to leave you with grams of Ag. Just multiply across: 12.99x10.46 for your answer, in grams.
What is the mass of a pure platinum disk with a volume of 113 with a density of platinum is 21.4?
Density = mass/volume To find mass when density and volume are known, multiply the density times the volume.
How can you determine pure silver if you know its volume and mass?
The density of pure silver is 10.5 grams per cubic centimeter. If you have the exact volume of the coin in CCs, you can calculate the weight that it would be were it pure silver. If it differs substantially from the calculated value, it is an alloy.
What property like volume depends of the size of the sample?
The volume and the mass of sample both depend on the size of the sample.A small sample has small volume and small mass, a big sample has big volumeand big mass. But the ratio of mass to volume is constant for a pure sample ofa substance, no matter what size the sample is. That ratio is called the densityof the substance.
The density for a sample of a pure material with a volume of 5 cm3 and a mass of 20 grams is?
The idea is to divide the mass by the volume.
A sample thought to be pure lead occupies a volume of 15.0 mi.and has a mass of 160.0g.determine the density and is the sample pure lead?
The density is 10.7 g/mL. The sample is not pure lead because the density of pure lead is 11.3 g/mL.
The density of pure diamond is 3.5 gcm3 The mass of a diamond is 0.25 grams Calculate its volume?
Density = Mass/Volume so Volume = Mass/Density Vol = 0.25/3.5 = 0.071429 cubic cm
How do you calculate the mass of water from its density?
You know that the density of pure water is 1g/cm3. If you also know the volume of the water, you can multiply the two and get the mass.
Why density is the criteria for purity with respect to chemistry?
Mass and volume are extensive properties, which are dependent upon the size of the sample. A larger sample will have a greater mass and volume than a smaller sample. Density is an intensive property, which does not depend on the size of the sample. Density is a ratio of mass to volume, which does not vary with the size of the sample. The density of a larger sample will be the same as the density of a smaller sample.
Is the density of a fluid the limit of the mass per unit volume as the voulume aproaches a value for which the ratio exists?
The definition doesn't require that level of complexity. Any physical sample of any solid, fluid, or gasmust have both mass and volume, and so the ratio must exist. Can you think of an exception ?As long as the sample is pure, the ratio should be independent of the size of the sample.
How many moles in 31.78G of Boron?
The atomic mass of B is 10.8Amount of B = mass of pure sample/molar mass = 31.78/10.8 = 2.94mol There are 2.94 moles of the element boron in a 31.78g pure sample.
Calculate theh mass of a sample of pure silver density equals 10 49 g cm that has a volume of 12.99cm?
Mass [g] (Ag)=(10.46g Ag/1cm Ag)(12.99cm Ag/1) The "centimeters" units cancel out to leave you with grams of Ag. Just multiply across: 12.99x10.46 for your answer, in grams.
What is the mass of pure silver that has a volume of 12.99 cm?
12.99cm is not a volume
What is the percent of oxygen by mass in a pure sample of FeCr2O4?
the answer is 29 percent
Does all pure water have the same mass and volume?
No.
