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What makes a sample of matter and homogeneous?
A sample of matter is considered homogeneous if its composition and properties are uniform throughout. This means that the sample has the same characteristics, such as color, density, and chemical composition, in all its parts. This uniformity allows for consistent behavior and properties within the sample.
Why is the melting point of a sample which has been previously melted different from the melting point of the original sample?
When a sample is melted and then solidified again, impurities or small changes in the sample's composition can occur, leading to a different melting point. These impurities or composition changes can affect the crystal structure and interactions in the material, resulting in a shift in the melting temperature.
Which air sample contains the most carbon dioxide?
the leg
Which gas contains the most molecules in a 5.0 l sample?
The gas that contains the most molecules in a 5.0 L sample would be the one with the highest molar mass. This is because the number of molecules in a gas sample is directly proportional to its molar mass.
What is a uniform mixtures?
A uniform mixture is : A sample of matter that has the same composition and properties throughout.
What is the percent composition of NaHCO3 in a given sample?
To find the percent composition of NaHCO3 in a sample, you would calculate the mass of NaHCO3 in the sample divided by the total mass of the sample, then multiply by 100 to get the percentage.
Sample composition of goodbye my frniend?
none
Matter that has the same composition and properties throughtout?
A substance is matter that has a uniform and consistent composition, meaning it contains the same types and proportions of atoms or molecules throughout. This results in substances having characteristic properties that do not vary within the sample.
What is a substance that has a fixed composition and differs from a mixture because every sample has the exact same characteristics and every sample has the exact same composition?
called: Compound.
How can mass spectroscopy help in identifying the composition of a sample?
Mass spectroscopy can help identify the composition of a sample by measuring the mass-to-charge ratio of ions produced from the sample. This information can reveal the molecular structure and elements present in the sample, aiding in its identification.
How does a mass spectrometer work to analyze the composition of a sample?
A mass spectrometer works by ionizing a sample, separating the ions based on their mass-to-charge ratio, and detecting the abundance of each ion to determine the composition of the sample.
How does the mass spectrometer work to analyze the composition of a sample?
A mass spectrometer works by ionizing a sample, separating the ions based on their mass-to-charge ratio, and detecting the abundance of each ion to determine the composition of the sample.
What makes a sample of matter and homogeneous?
A sample of matter is considered homogeneous if its composition and properties are uniform throughout. This means that the sample has the same characteristics, such as color, density, and chemical composition, in all its parts. This uniformity allows for consistent behavior and properties within the sample.
Why is the melting point of a sample which has been previously melted different from the melting point of the original sample?
When a sample is melted and then solidified again, impurities or small changes in the sample's composition can occur, leading to a different melting point. These impurities or composition changes can affect the crystal structure and interactions in the material, resulting in a shift in the melting temperature.
How does mass spec work to analyze the composition of a sample?
Mass spectrometry works by ionizing a sample to create charged particles, which are then separated based on their mass-to-charge ratio. The resulting spectrum provides information on the composition and structure of the sample.
Which sample contains the greatest number of atoms a sample of Mn that contains 3.29E plus 24 atoms or a 5.18 mole sample of you?
Which sample contains the greatest number of atoms. A sample of Mn that contains 3.29E+24 atoms or a 5.18 mole sample of I?The sample of _____ contains the greatest number of atoms.Answer:In order to compare the two samples, it is necessary to express both quantities in the same units. Since the question was phrased in terms of atoms, it is convenient to convert moles of I to atoms of I.The conversion factor between atoms and moles is Avogadro's number: 6.02 x 1023 "things" / molTo convert 5.18 moles of I to atoms of I:atoms I= 5.18 mol I6.02 x 1023 atoms I = 3.12E+24 atoms I1 mol IMultiply by atoms per mole. Moles cancel out.The sample of Mn contains 3.29E+24 atoms.Since 3.12E+24 is smaller than 3.29E+24, the sample of Mn contains the greatest number of atoms.
Why is it important to refrigerate a urine sample?
Refrigerating a urine sample helps to slow down the growth of bacteria that can cause the sample to deteriorate or become contaminated. This helps to maintain the integrity of the sample for accurate testing and analysis. Refrigeration also helps preserve the chemical composition of the urine for more reliable results.
