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What else can I help you with?
Does density change if the sample of the same matter is larger?
No density if a characteristic of matter. Density can vary with temperature and pressure, but a chunk of something twice the volume of another chunk of the same substance will weigh twice as much because the two chunks have the same density.
Which experiment most likely has greater reliability and why?
The experiment with a larger sample size is likely to have greater reliability because it provides more data points to observe trends and patterns, reducing the impact of random variability. Larger sample sizes also increase the likelihood of obtaining more precise and accurate estimates of the true population parameters.
A 1066 gram mineral displaces 300 ml of water. What is the specific gravity of the mineral?
We find that 3.53 is the spee gee (specific gravity) of our mineral. Specific gravity is a measure of the density of a substance compared to the density of water. The density of water is 1 g/ml and we just need to do some simple math. Since water is 1g/ml, we just need to find out the density of our sample in g/ml and drop the units. Note that specific gravity has no units associated with it. It is a number. Our mineral sample weighs 1066 grams, and its volume is 300 ml. 1066 / 300 = 3.53333....
What does optical density of 1 means?
An optical density of 1 indicates that 90% of light is absorbed by the material being measured. It is commonly used in spectrophotometry to quantify the amount of light absorbed by a sample. A higher optical density value indicates greater light absorption.
How Mass and volume can affect the density of the volume?
The definition of density is mass per unit volume. For any object or sample of a substance, it can be calculated as (mass) divided by (volume). If two objects or samples with the same volume have different masses, the one with the greater mass has greater density. If two objects or samples with the same mass have different volumes, the one with the greater volume has smaller density.
What is the density of a mineral sample?
The density of a mineral sample is a measure of its mass per unit volume. It can be calculated by dividing the mass of the sample by its volume. The density of a mineral sample is a characteristic property that can help in identifying the mineral.
What is the density of a mineral sample with a mass of 20g and a volume of 12cm3?
The density of the mineral sample is 1.67 g/cm3. This is calculated by dividing the mass (20g) by the volume (12cm3).
What equation would you use to express the density of a mineral sample?
density = mass / volume
What property is the mass of a mineral sample per unit volume?
Its density.
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 mineral considered its mass divided by its volume?
Yes, the standard definition of density is mass divided by volume. This presumes the mineral is uniform throughout the sample.
How can density help identify a mineral?
Each mineral has a characteristic density (or range of densities), so if the measured density is a close match to a mineral you know, it MAY be that mineral; if it doesn't match, it is something different.
When can you estimate a population's size when counting individuals in a sample of the population?
You can estimate a population's size when counting individuals if the density in a sample is greater than the population density.
How are the characteristics of a mineral identified?
Through testing of a sample to determine hardness, luster, streak, density, and chemical composition.
What is the mineral property defied by Density of the mineral sample divided by the density of water?
The mineral property defined by the ratio of a mineral's density to the density of water is called specific gravity. It is a useful parameter for identifying minerals and can help distinguish between different types of minerals based on their mass-to-volume ratio. Specific gravity is a dimensionless quantity that quantifies how much denser or lighter a mineral is compared to water.
How is that the random sample gives a fairly accurate representation of public opinion?
The larger the sample, the greater the accuracy, but in every case, the sample must be truly random.
How did early prospectors use density to determine whether they had found gold or pyrite?
Early prospectors used density to determine whether they had found gold or pyrite by comparing the weight of the mineral sample to its volume. Gold has a higher density than pyrite, so a sample of gold would feel heavier for its size compared to a sample of pyrite. By calculating the density of the sample using the formula density = mass/volume, prospectors could determine if they had found gold or pyrite based on the density value obtained.
