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If the volume of the sample of pyrite equals the volume of the sample of gold how many?
If the volumes of the samples of pyrite and gold are equal, you cannot directly determine the number of samples without knowing the specific mass or density of each material. Pyrite has a lower density (about 5 g/cm³) compared to gold (about 19.3 g/cm³), meaning that for the same volume, a sample of gold would weigh significantly more than a sample of pyrite. Therefore, while the volumes may be equal, the mass of gold will be greater than that of pyrite.
What statement best compares the masses of the two samples?
The masses cannot be compared without a balance.
When heating a sample of pure water to the boiling point why doesn't all of the water instantly vaporize when you reach the boiling point?
When water reaches its boiling point, it does not instantly vaporize because the heat energy is being used to break the hydrogen bonds holding the water molecules together. As the temperature continues to rise, more energy is transferred to the water molecules, causing them to break free and become vapor. This process of reaching a balance between the energy input and the energy needed to break the intermolecular forces takes time, so the water does not vaporize instantly.
What is flame atomization?
Flame atomization is a process in which a liquid sample is converted into a fine mist of droplets through the use of a flame. This mist is then heated to vaporize the liquid and produce atoms for analysis using techniques such as atomic absorption spectroscopy or atomic emission spectroscopy. This process allows for the detection and quantification of elements present in the liquid sample.
The mass of Denise's rock sample is 684 grams. The mass of Pauline's rock sample is 29,510 centigrams. How much greater is the mass of Denise's sample than Pauline's sample?
"centi" is 100. 1 centigram is 100 grams, so Denise's sample is 68,400 centigrams. 68400 - 29510 = 38890 centigrams or 388.90 grams.
Why the time needed to vaporize a sample is greater than the time needed to melt a sample?
The amount of time depends on the latent heat of vaporisation and the latent heat of melting.
what is needed for simple random sample?
A reason for requiring a sample.
What did the 1936 election demonstrate that a good poll needed?
The election of 1948 demonstrated that a good poll needed a later sample.
The act of generalizing from a sample that is significantly different from the target population and relevant respects?
Biased sample
How much stool sample is needed for a cat?
A small amount of stool sample, about the size of a grape, is usually needed for a cat's fecal examination.
What is needed to have good poll?
random sample
What proportion of sample proportions have a value greater than the population in any normal sample proportion distribution?
A half.
When the sample size is greater than n equals 30?
There is nothing particularly significant about a sample size of 30.
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.
What is the sample size for standard deviation?
There is no such thing. The standard error can be calculated for a sample of any size greater than 1.
Can a blank titration reading be greater than sample titration?
yes.
What is a sample that has greater entropy?
A Carnot cycle is a sample of something that has greater entropy. The word entropy can e defined s meaning reverse system. The concept of entropy was started with the work of Lazare Carnot.
