Chemistry, 11.07.2019 12:50 INEEDHELP6845

Calculate the volume occupied by 56.5 g of argon gas at stp

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Molar mass of argon = 39.95 grams
number of moles of Argon = mass / molar mass
number of moles of Argon = 56.5 / 39.95 = 1.414 moles

At STP, one mole of gas occupies 22.4 liters. To know the volume that 1.414 moles occupy, all you have to do is cross multiplication as follows:
volume = (1.414*22.4) / 1 = 31.679 liters

Answer from: lizarroyo

31.7 liters if using the pre 1982 definition of STP. 32.1 liters if using the post 1981 definition of STP. First, determine how many moles of argon you have by dividing the mass you have by the atomic weight of argon. So 56.5 g / 39.948 g/mol = 1.41433864 mol Second, determine what definition of STP you're using. the definition prior to 1982 of STP was 0Â°C with a pressure of 1 atmosphere (1.01325 X 10^5 Pascals). The definition for 1982 and later is 0Â°C with a pressure of 1 X 10^5 Pascals. There are still quite a few textbooks that use the older definition of STP so I'll be giving the results for both the old and new definitions of STP. To calculate the volume of an ideal gas, just multiply the number of moles by a constant. That constant is 22.710980 liters/mol for the 1982 and later standard and 22.414 liters/mol for the pre 1982 standard. So Pre 1982 1.414339 * 22.414 = 31.70098628 liters = 31.7 liters post 1981 1.414339 * 22.71098 = 32.12101657 liters = 32.1 liters

Answer from: Quest

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.

Answer from: Quest

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.

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Calculate the volume occupied by 56.5 g of argon gas at stp...