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Ingenhousz likely collected a sample of dephlogisticated air, which we now know as oxygen, by using a method involving plant photosynthesis. He would have placed aquatic plants in water and exposed them to sunlight, observing the bubbles released during photosynthesis. These bubbles, primarily composed of oxygen, could then be collected and analyzed, allowing him to demonstrate the production of this gas in the presence of light. This experiment contributed to the understanding of the role of plants in oxygen production.
What else can I help you with?
What is the mass of a sample aerogel?
That's going to depend on the size of the sample you have. A larger sample will have more mass than a smaller sample, much like virtually every other known substance. Aerogel is a synthetic porous material derived from a gel, in which the liquid component of the gel has been replaced with a gas. The result is a solid with extremely low density and thermal conductivity. It is nicknamed frozen smoke, solid smoke, solid air or blue smoke owing to its translucent nature and the way light scatters in the material; however, it feels like expanded polystyrene (styrofoam) to the touch. Various samples of aerogel may have densities anywhere between 1 mg/cm3 (less dense than air) to 2 mg/cm3 .
What are the errors in viscometer?
Errors in viscometer measurements can arise from several sources, including calibration inaccuracies, temperature fluctuations, and improper sample handling. Instrumental errors may occur due to wear and tear or defects in the viscometer design. Additionally, the presence of air bubbles or impurities in the fluid can lead to erroneous viscosity readings. It's also important to ensure that the sample is homogeneous and at the correct temperature to minimize variability in results.
What weighing balances performs measurement in a closed compartment with no air currents to disturb measurement?
Balances that perform measurements in a closed compartment designed to minimize air currents are known as analytical balances. These balances typically feature a draft shield to protect the weighing pan from environmental disturbances, ensuring highly accurate measurements. The enclosed design helps maintain stable conditions, reducing the influence of air currents and temperature fluctuations on the weighing process. Analytical balances are commonly used in laboratories for precise measurements of small sample weights.
How do you think the density of heated air compares to the density of cooler air?
The density of heated air is less than the density of cooler air.
How many pounds of wheat is in a 55 gallon drum?
Unknown: 55 gal drum is a volume. This is the amount of volume this drum can hold. Gallon is a liquid measure, so, compounded with the fact that you don't know the mass or weight of the wheat, you don't have a dry measure. Are there air pockets? Is the wheat 100% dry? What is the mass of a given sample of wheat? After you answer these questions, just substitute for weight, and you will have your answer.
How did Ingenhousz collect a sample of dephlogisticated air?
use your brain
How did Jan ingenhousz collect a sample of dephlogisticated air?
No one knows
What was dephologisticated air?
dephlogisticated air is oxygen gas; - so called by Dr. Priestly and others of his time.
What is the modern word for the gas produced by a plant to make dephlogisticated air?
Oxygen.
A 240 mL air sample collected at 35C has a pressure of 550 torr What pressure will the air exert if it is allowed to expand to 425 mL at 50C?
Rules and schools are tools for fools
What did Joseph priestly find out dephlogisticated air?
Joseph Priestley discovered that what he called "dephlogisticated air" was in fact oxygen. This discovery challenged the prevailing theory of phlogiston, and laid the foundation for understanding the role of oxygen in combustion and respiration. Priestley's work on oxygen was crucial in the development of modern chemistry.
How do you think ingenhousz showed that it was dephlogisticated and not fixed air?
Ingenhousz demonstrated that oxygen (dephlogisticated air) was produced during photosynthesis by showing that plants release this gas in the presence of light. This was different from fixed air (carbon dioxide) because plants were observed to only release oxygen in the light, suggesting a direct relationship between the presence of light and the production of oxygen.
What is the man recognized Oxygen and hydrogen?
Joseph Priestley was the man who first discovered oxygen, or as he called it "dephlogisticated air", back in the 18th Century
How does an air sampling pump work?
An air sampling pump measures contaminants such as biological and environmental present in a sample of air. The sample of air is drawn into a tube which is attached to the pump. The air is vaporized and the particular contaminants presence is measured.
Why must the container be stoppered for the gas to be collected?
The stopper prevents the gas from escaping into the surroundings, allowing it to be collected efficiently within the container. It also helps to ensure that the gas sample remains uncontaminated by outside air or particles. Additionally, a closed system with a stopper allows for accurate measurement and analysis of the collected gas.
Why hydrogen cant be collected by the downward displacement of air?
Hydrogen is lighter than air, which is why it rises upwards in the atmosphere. When collected by the downward displacement of air, the denser air prevents the lighter hydrogen from being fully collected as it continues to rise. This method is more effective for gases that are denser than air.
What was the composition of priestley dephlogisticated air and Rutherford's phlogisticated air?
The facts, as they stand, are these: every creature, when respiring, releases phlogiston. In fact, respiration is simply to be considered a form of combustion. Anything that can burn contains phlogiston. Substances, when burnt, release this weightless, invisible substance - an element of their being, their composition - the phlogiston. The phlogiston is always in need of somewhere to go. Such as, air is best for the phlogiston. Air can absorb it. Taking this mode of thinking to its furthest logical conclusion we can only state that the reason creatures "suffocate" is because there is nowhere for the phlogiston to go. When air was removed from around a living creature then there is nowhere for the phlogiston to go and so respiration would cease and the creature dies.
