Homework Help: chemistry

Posted by Hannah on Friday, July 22, 2011 at 4:04pm.

A sample of metallic element X, weighing 4.315 g, combines with 0.4810 L of Cl2 gas (at normal pressure and 20.0ⅹC) to form the metal chloride with the formula XCl. If the density of Cl2 gas under these conditions is 2.948 g/L, what is the mass of the chlorine? The atomic weight of the chlorine is 35.453 amu. What is the atomic weight of X? what is the identity of X

chemistry - DrBob222, Friday, July 22, 2011 at 6:52pm
2.948 g/L x 0.4810L = ?? grams.
Convert ??grams t moles. moles = grams/molar mass.

.........2X + Cl2 ==> 2XCl
Set up an ICE chart. YOu know Cl2 is? moles; then twice that must be mols X and n = grams/molar mass. Solve for molar mass. Look on the periodic table to identify the element.

Answer this Question

Related Questions

chemistry - A sample of metallic element X, weighing 4.315 g, combines with 0....
chemistry - A sample of gas with an initial volume of 32.50 L at a pressure of ...
CHEMISTRY - WHEN A 50.0g SAMPLE OF AN ELEMENT COMBINES COMPLETELY WITH ANOTHER ...
CHEMISTRY - A 40.0g SAMPLE OF AN ELEMENT COMBINES COMPLETELY WITH ANOTHER ...
Chemistry - a sample of helium gas is in a closed system with a movable piston. ...
chemistry - Someone can help me please? A gas sample weighing 0.528 g is ...
chemistry - A sample of gas weighing 9.0 (g) at a pressure of 1 atm occupies a ...
Chemistry - a sample of gas of unknown pressure occupies 0.766 L at the ...
Chemistry - A McLeod gauge measures low gas pressures by compressing a known ...
AP Chemistry - Small quantities of hydrogen gas can be prepared in the ...

For Further Reading

First Name:
School Subject:
Answer: