How many moles of helium have been evolved

Assignment Help Chemistry

Reference no: EM13166458

a sample of neon is collected by displacing 182 ml of water. The pressures of the gas and the atmosphere are equalized, using the method described in the decomposition of potassium chlorate. The atmospheric pressure is 738 mmhg. The temperature of the water and that of the gas are identical at 26oC. how many moles of helium have been evolved.

Reference no: EM13166458

Questions Cloud

What is the mass of nabr in the mixture : A mixture of NaCl and NaBr has a mass of 2.00 and is found to contain 0.78 of Na. What is the Mass of NaBr in the mixture.

Prepare quarterly production budgets : Sales in the first quarter of 2015 are expected to be 25% higher than sales in the same quarter in 2014 and prepare quarterly production budgets for each quarter and in total for 2014.

Why is a vapor unlikely to behave as an ideal gas : Why is a vapor unlikely to behave as an ideal gas near temperature at which vapor would liquefy?

Calculate the npv of this investment opportunity : The minivan is expected to have a $10,000 salvage value at the end of 10 years. This delivery service is expected to generate net cash inflows of $20,000 per year in each of the 10 years. Apnea's cost of capital is 9%. Calculate the NPV of this in..

How many moles of helium have been evolved : The temperature of the water and that of the gas are identical at 26oC. how many moles of helium have been evolved.

Prepare the companys statement of cash flows : Prepare the companys statement of cash flows for the year ended December 31, 20X1. Use the indirect method of determining net cash flows from operating activities.

What is your overall impression of whole foods market : What is your overall impression of Whole Foods Market, Inc.'s annual report? Is it a financial accounting document or a managerial accounting document?

What was the mass of the aluminum : A piece of Al(s) at 94°C is placed in 65g of H2O at 28°C. The Aluminum cools and after equilibrium the final temperature of Aluminum and water is 38°C. What was the mass of the aluminum?

Find molality : The density of a 16.0 mass % solution of sulfuric acid in water is 1.1094{g/mL} at 25.0 degrees celcius.

User Account

All Pages