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Would all samples of sea water have the same specific gravity?
No, the specific gravity of sea water can vary depending on factors like temperature, salinity, and pressure. However, at standard conditions, the average specific gravity of sea water is around 1.025.
A 5.0gram sample of gold and a 5.0gram sample of iron both absorb exactly 25 calories of energy The specific heat of gold is 0.03 cal over gC The specific heat of iron is 0.11 cal over gC?
The query is incomplete. So it has to be: What will be the rise in temperature in both? Let us use the formula Q = m s t. As m remains constant and Q too remains constant then st, the product must be a constant. Hence s and t are inversely related. Higher the value of s then less the rise in temperature. For gold its value will be t = Q/m * 1/s = 5/0.03 = 500/3 degree rise ie 167 degree nearly For iron the value will be t = 5/0.11 = 500/11 = 45.5 degree nearly
How does density depend on the amount of material?
Because density is an intensive property, it does not depend on the amount of material. Density is a ratio between mass and volume, D=M/V. That specific ratio is constant for any material. For example, the smallest sample of aluminum and the largest sample of aluminum have a density of 2.70 g/cm^3 at room temperature. Density does change with temperature because temperature affects volume. The density of all samples of aluminum at its melting point is 2.375 g/cm^3.https://en.wikipedia.org/wiki/Aluminium
The molecules of all samples of ideal gases have the same average kinetic energies at the same?
temperature. This is known as the kinetic theory of gases, which states that the average kinetic energy of gas molecules is directly proportional to the temperature of the gas, regardless of the type of gas.
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.
Which is a value that should remain constant for all samples in this experiment?
It could be many things such as temperature or pressure.
Under the same conditions of temperature and pressure three different samples of the same uniform substance will have the same?
Density reason is that the density of a uniform material is constant Density is independent of the size and shape of the sample.
At room temperature all samples of liquid H2O must have the same what?
At room temperature, all samples of liquid H2O must have the same boiling point, which is 100 degrees Celsius or 212 degrees Fahrenheit at standard atmospheric pressure.
Which was the relevance that Avogadro made for chemistry?
Avogadro stated that two samples of ideal gases at the same temperature, pressure, and volume contain the same number of molecules.
What is the purpose of stirring the liquid bath in both determinations?
Stirring the liquid bath ensures a uniform temperature throughout the bath, which is important for accurate and consistent measurements. It helps to minimize temperature variations within the bath, ensuring that the samples are exposed to a constant and homogeneous temperature environment during the determinations.
What temperature are blood samples stored at?
20 degrees Celsius
Is The density of a substance is the same for all samples of the substance?
Not necessarily. The temperature of the samples would have to be the same. It can also vary with how pure the substance is.
Why do you use a water bath in chemical experiments?
A water bath is used in chemical experiments to provide a stable and uniform temperature environment for samples. This helps to control the temperature of reactions or facilitate heat-sensitive experiments. The water bath also helps to reduce evaporation and maintain a constant temperature throughout the experiment.
Why clinical trials can't be done on human tissues?
The tissue samples are not alive. They are not living or moving like a living human. The effects of the drugs may be different on 'non living' samples may be different to the effects on a non-living human.
True or false the density of a substance is the same for all samples of substance?
False. The density of a substance can vary depending on factors such as temperature and pressure. Additionally, impurities in a sample can also affect its density.
Principle of water bath?
In a lab (or a kitchen) it is often esssential to keep a liquid mixture at an exact temperature without a gradient of heat (the bottom being hotter than the top) to make it "cook" properly. To do this scientists (and cooks) often submerge the vessel needing this controlled environment into a bath of water at a controlled temperature. The advantage is that the water in the wath presents the heated material with a constant temperature that will not exceed 100oC (the boilling point of water) so that over heating or scorching is avoided. The laboratory water bath is slightly more complex than the kitchen version (the double boiler) as the temperature can be controlled through sensors to wthin a degree of the desired temperature.
What is purpose of using water bath in the experiment?
A water bath is used in experiments to provide a constant temperature environment for samples or reactions. This helps maintain the stability and accuracy of the experiment by preventing fluctuations in temperature that could affect the results. Additionally, a water bath can be used for heating or cooling purposes depending on the needs of the experiment.
