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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.
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How didIgenhousz collect sample of dephlogisticated air?
Jan Ingenhousz collected samples of dephlogisticated air by conducting experiments on plants, particularly focusing on their ability to produce gas during photosynthesis. He used a setup that involved placing aquatic plants in sunlight and capturing the gases released in water. This allowed him to isolate and study the oxygen produced, which he referred to as "dephlogisticated air," distinguishing it from the carbon dioxide present in the atmosphere. His work laid foundational concepts for our understanding of photosynthesis and gas exchange in plants.
Kyle took a sample of air at 22 degrees centigrade. The sample included the molecules listed below. Which are moving the slowest on average?
In a sample of air at 22 degrees Celsius, the molecules with the highest molecular mass will generally move the slowest on average. Among the common components of air, nitrogen (N₂) has a higher molecular weight than oxygen (O₂) and argon (Ar), but all are relatively light. If heavier gases like carbon dioxide (CO₂) or water vapor (H₂O) were present, they would move slower than the lighter nitrogen and oxygen molecules at this temperature. Thus, the slowest-moving molecules in the sample would likely be the heavier gases, if present.
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 did Ingenhousz collect a sample of dephlogisticated air?
use your brain
How did Jan ingenhousz collect a sample of dephlogisticated air?
No one knows
How didIgenhousz collect sample of dephlogisticated air?
Jan Ingenhousz collected samples of dephlogisticated air by conducting experiments on plants, particularly focusing on their ability to produce gas during photosynthesis. He used a setup that involved placing aquatic plants in sunlight and capturing the gases released in water. This allowed him to isolate and study the oxygen produced, which he referred to as "dephlogisticated air," distinguishing it from the carbon dioxide present in the atmosphere. His work laid foundational concepts for our understanding of photosynthesis and gas exchange in plants.
How did ingenhousze showed this was dephlogisticated and not fixed air?
Joseph Priestley, through experiments with gases, demonstrated that "dephlogisticated air" (what we now know as oxygen) was distinct from "fixed air" (carbon dioxide) by observing their different properties. He showed that dephlogisticated air supported combustion and respiration, while fixed air did not. Additionally, he found that dephlogisticated air produced a brighter flame and was absorbed by substances like rusting iron, which further distinguished it from fixed air. This helped lay the groundwork for understanding the composition of air and the nature of gases.
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.
