0
What else can I help you with?
Which sample of water has the lowest vapor pressure?
The sample of water that has the lowest vapor pressure is the sample at a lower temperature. Vapor pressure decreases as temperature decreases because fewer molecules have enough energy to escape into the gas phase.
A sample of oxygen occupies 1.00 L If the temperature remains constant and the pressure on the oxygen is tripled what is the new volume?
According to Boyle's Law, at constant temperature, the pressure and volume of a gas are inversely proportional. So, if the pressure is tripled, the volume would become one-third of the original volume. Therefore, the new volume would be 0.33 L.
How many metric tons of oxygen are combined in a sample of pitchblende that contains 1.8 tons of uranium?
To determine the amount of oxygen combined in the sample of pitchblende, we use the chemical formula of pitchblende, which is U3O8. The molar ratio of uranium to oxygen in U3O8 is 3:8. Given that there are 1.8 tons of uranium in the sample, we calculate the amount of oxygen by multiplying 1.8 tons of uranium by the ratio of oxygen to uranium (8/3). This yields approximately 4.8 tons of oxygen combined in the sample of pitchblende.
A Sample of a compound contains 64 g of copper and 16 g of oxygen what is the ratio of mass to copper of oxygen?
The ratio of mass of copper to oxygen in the sample is 4:1. This is determined by dividing the mass of copper (64 g) by the mass of oxygen (16 g).
What is the Working principle of dissolved oxygen meter?
Dissolved Oxygen (DO) is really a physical distribution of oxygen molecules in water. There are two main sources of DO in water: atmosphere and photosynthesis. Waves and tumbling water mix air into water where oxygen readily dissolves until saturation occurs. Oxygen is also produced by aquatic plants and algae as a by-product of photosynthesis. The electrochemical method of measuring DO requires a cathode, anode, electrolyte solution and a gas permeable membrane. The material of the membrane is specially selected to permit oxygen to pass through. Oxygen is consumed by the cathode which will create a partial pressure across the membrane. Oxygen will then diffuses into the electrolyte solution. Thus, a DO meter actually measures the pressure of oxygen in water. It can be used to measure DO in any medium.
What happens to the partial pressure of oxygen in a sample of air when the temperature increases?
When the temperature of a sample of air increases, the partial pressure of oxygen also increases.
What if oxygen is removed from a sample of air as iron rusts what happen to the partial pressure of oxygen in the air?
it decreases
If the temperature is increased What happens to the partial pressure of oxygen in a sample of air?
If the temperature is increased, the partial pressure of oxygen in a sample of air will also increase. This is because as the temperature rises, the oxygen molecules in the air will have greater kinetic energy and will exert more pressure.
If a sample of air that has a total pressure of 150 ATM contains 69 oxygen what is the partial pressure of oxygen found within the air?
The pressure is 103,5 at.
A sample of oxygen gas occupies 300.0 mL at 27ºC and atmospheric pressure What volume does it occupy at 150ºC and the same pressure?
423mL
A sample of oxygen gas occupies 320.0 mL at 27C and atmospheric pressure What volume does it occupy at 120C and the same pressure?
419 mL
How many moles of gas were there in this sample if the vapor pressure of water at 25ºC is 23.8 mm Hg?
0.0113 mol oxygen
What is oxygen bomb calorimeter?
An oxygen bomb calorimeter is a device used to measure the energy content of a sample by combusting it in a controlled environment and measuring the temperature change. The sample is sealed in a high-pressure vessel (the bomb) with oxygen, ignited, and the heat released is used to calculate the calorific value of the sample. This method is commonly used to determine the energy content of fuels and food.
Why is the drop in blood pressure important in exchanging fluids within the capillaries?
It is important because capillaries do most of their work of exchanging gases, oxygen and carbon dioxide, by diffusion, which works best under less pressure. ???That is not quite right. Exchange of gases occurs when there are different concentrations in a given sample and it has nothing to do with pressure. Filtration occurs under different pressure, diffusion happens regardless of pressure.
What state was argon found in?
Argon was found in the gaseous state. A sample of clean air was taken. Then oxygen, carbon dioxide, water, and nitrogen were removed. One unknown gas was still in the sample. This was later determined to be Argon.
How is a sample oxygen different from a sample of a water?
A sample of oxygen is a pure gas composed of oxygen molecules (O2), while a sample of water is a liquid composed of hydrogen and oxygen atoms (H2O). These substances have different physical properties and chemical compositions, with oxygen being a gas and water being a liquid at room temperature.
A gas sample is held at constant temperature. What happens to the pressure of the sample if the volume is doubled and the number of molecules is doubled?
If the volume is doubled and the number of molecules is doubled while the temperature is held constant, the pressure of the gas sample will remain the same. This is because both the volume and the number of molecules increased by the same factor, resulting in no net change in pressure according to the ideal gas law.
