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Why is it insufficient to know only the volume of a gas when you are trying to determine the amount of gas in a sample If you know the volume what other information would you need?
Wiki User
∙ 14y ago
You also need to know the temperature.
Wiki User
∙ 14y ago
Knowing just the volume of a gas is insufficient because the amount of gas is also affected by the pressure and temperature. To fully determine the amount of gas in a sample, you would also need to know the pressure and temperature at which the gas is being measured, typically expressed in units like atmosphere (pressure) and Kelvin (temperature). This information is important to calculate the number of moles of gas present using the ideal gas law.
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How much of a 100 gram sample would remain unchanged after two hours?
This would depend on the specific sample and its stability. Without additional information, it is not possible to determine how much of the sample would remain unchanged after two hours.
A sample has a mass of 612 grams and a volume of 78 cm3 What is the identity of the sample?
To determine the identity of the sample, you would need the density of the material it is made of. Density is calculated by dividing mass by volume (density = mass/volume). Without this information, it is not possible to accurately determine the identity of the sample.
How do you determine water content in methylene blue powder?
The water content in methylene blue powder can be determined by using a method such as Karl Fischer titration, which specifically measures the amount of water present in a sample. This method involves titrating the sample with a Karl Fischer reagent that reacts with water to determine its concentration in the sample.
What happens in a spectrophotometer?
A spectrophotometer measures the amount of light absorbed or transmitted by a sample at different wavelengths. It identifies the specific wavelengths of light that a sample absorbs, which can be used to determine the concentration of a substance in the sample. This information is valuable in scientific research, quality control, and analytical testing.
How do you titrate biodiesel?
Titration of biodiesel involves using a chemical reaction to determine the amount of acid in the biodiesel sample, commonly using a titrant such as potassium hydroxide. The titration process involves adding the titrant to the biodiesel sample until the endpoint is reached, typically indicated by a color change. The amount of titrant used can then be used to calculate the acidity of the biodiesel sample.
What part Of the spectrophotometer is responsible for detecting the amount of light absorbed?
The detector in a spectrophotometer is responsible for detecting the amount of light absorbed. It measures the intensity of the light after it has passed through the sample in the spectrophotometer. The detector converts this information into an electrical signal that can be used to determine the absorbance of the sample.
If your rock sample has a mass of 10g how many grams of quartz does it contain?
To determine the amount of quartz in the rock sample, you would need to measure its quartz content as a percentage of its overall composition. Once you have this percentage, you can calculate the amount of quartz in grams. The mass of the rock sample alone does not provide enough information to determine the quantity of quartz it contains.
What is the Sample space for 4?
In order to determine the sample space, an actual description of the problem is needed. A number doesn't give the required information.
To calculate the amount of heat absorbed as a substance melts what information is not needed?
To calculate the amount of heat absorbed as a substance melts, you do not need information about the substance's boiling point or its specific heat capacity in the liquid state. The key parameters needed are the substance's heat of fusion (melting) and the mass of the substance melting.
How do scientists use half lives to determine age?
Scientists use the concept of half-life to determine the age of a sample by measuring the remaining amount of a radioactive isotope in the sample. By knowing the half-life of the isotope and the initial amount present, they can calculate how much time has passed since the sample was formed. This method is commonly used in radiometric dating of rocks, fossils, and other materials.
How much ice water will it take to cool the sample to 20 degrees celsius?
To calculate the amount of ice water needed to cool the sample to 20 degrees Celsius, you would need the initial temperature of the sample, the mass of the sample, and the specific heat capacities of water and ice. With this information, you could use the equation q = m * c * ΔT to determine the quantity of ice water needed to cool the sample.
What is the principal of spectophotometer?
A spectrophotometer measures the intensity of light at different wavelengths that pass through a sample. By comparing the amount of light absorbed or transmitted by the sample at different wavelengths to a reference, the spectrophotometer can determine the concentration of a substance in the sample.
How does carbon dating work ma?
Carbon dating works by measuring the amount of radioactive carbon-14 in a sample. Carbon-14 is present in all living organisms and decays at a known rate after death. By comparing the amount of carbon-14 remaining in a sample to the amount in living organisms, scientists can determine the sample's age.
What is the purpose of Differential scaning colorometry?
Differential Scanning Calorimetry (DSC) is an analytical test in which a small sample is progressively heated to determine what elements are in it. By observing the amount of heat absorbed into the sample, it displays a graph that can be compared with graphs of known materials. Many times, the graphs are not identical to anything in the known sample database, so we just choose the one that is closest to determine what 'family' the sample comes from.
How do you determine an adequate sample size?
A sample size is needed whenever you conduct an experiment. How you determine an adequate sample size depends on the scope of what you're testing, such as medications.
What information about a sample does a mean not provide?
what information about the sample of a mean not provide
A sample has a mass of 612 grams and a volume of 78 cm3 What is the identity of the sample?
To determine the identity of the sample, you would need the density of the material it is made of. Density is calculated by dividing mass by volume (density = mass/volume). Without this information, it is not possible to accurately determine the identity of the sample.
