I need help With Chemistry 2). If 0.00100 moles of hydrogen gas at 155 C exert a pressure of 323 atm. What is the volume?

3). If 0.00100 moles of hydrogen gas at 155 C exert a pressure of 323 atm. What is the volume?

4. It is desired to obtain a volume of 1.00 dm3 of nitrogen at 100.C and 640 kPa. How many moles of nitrogen would be required?

5. Some oxygen is collected in a 0.250 dm3 container at 25.0C and 720. kPa. How many moles of oxygen is this

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.