Steel tank containing helium
A steel tank containing helium is heated to 555?C. If you could look into the tank and see the gas molecules, what would you observe?
Expected delivery within 24 Hours
How many 10 liter helium balloons could be filled from the tank assuming no change in the temp and a pressure in the balloons of 1.05 atm?
When X rays of wavelength 0.084 nm are diffracted by a metallic crystal, the angle of first-order diffraction (n = 1) is measured to be 15.2 degrees;. What is the distance between the layers of atoms responsible for the diffraction?
at 986°C is 0.63. A rigid cylinder at that temperature contains 1.2 atm of carbon monoxide, 0.20 atm of water vapor, 0.30 atm of carbon dioxide, and 0.27 atm of hydrogen. Is the system at equilibrium?
The brown gas NO2 and the colorless gas N2O4 exist in equilibrium. In an experiment 0.625 mole of N2O4 was introduced into a 5.00 L vessel and was allowed to decompose until equilibrium was reached. The concentration of N2O4 at equilibrium was 0.0
Calculate the amount of heat (kcal) released when 50.0g of steam at 100 degrees celcius hits the skin, condenses, and coos to a body temperature of 37 degrees celcius.
Assume that we have a 100.g sample of this compound. What are the subscripts in the empirical formula of this compound?
sodium-24 is a radioistope with half life of 15 hors. A sample of pure sodium-24 has an inital mas of 400.0g. what mass of sodium-24 remains after 60 hours?
Which of the following conceps best describes the reason that atoms are larger and electron energies are weaker as you go down the periodictable?
117 gram sample of a metal reacts with hyrdochloric acid to produce 36.3 ml of dry hydrogen gas, measured at stp. what is the equivalent weight of this metal?
What color is the universal indicator when a double replacement reaction occurs with HCl and NaOH. The HCl turns the indicator red and the NaOH turns the indicator purple.
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
How does your profession delegate the Controlled Acts? What are your thoughts on the Controlled Acts?
Had Ghaada not recognized that Adam's actions may have had a meaning other than what she initially thought, which model of communication would most reflect
How did the teacher establish behavioural expectations prior to an outside-the-classroom activity, such as soccer,
Problem: List the goals of the intro and conclusion and why they are valuable to your presentation.
Explain what supportiveness means by discussing its relationship to agreeing with others (are the two the same?).
Write memo about one of these following 1. To thank or congratulate. 2. To improve the company's image
Purpose: To explain Oktoberfest to your boss and suggest how your company might benefit from this festival.