Chemistry Forum

If a gas has volume of 2.84 L at 1.00 atm and 0 degrees C. How do I figure out the temperaure with a volume of 7.50L at 520 mmHg?

If a flask is filled wih gas at 25 degrees C and 0.95 atm pressure, sealed and heated to 117 degrees C, how do I figure out the pressure inside the flask?

Having difficulty balancing the following two equation:

NO2(g) + O2(g) -- N2O5(g)

and

P4O10(s) + H20 --- H3PO4(aq)

I am stumped. Need to balance equations. Here is an example of four of the 25 I need to do:

Al(OH)3(aq) + HNO3(aq) ---- Al(NO3)3(aq) + H2O(1)

AgNO3(aq) + FeCl3(aq) -- AgCl(s) + F3(NO3)3 (aq)

(NH4)2Cr2O7(s) ---Cr2O3(s) + H2O(g) + N2(g)

Mn2 (CO3)3(s) --- Mn2O3(s) + CO 2(g)

Thanks.

using CO(g) + 2H2 (g) --- CH3OH(l) I am pretty sure this means by heating wood without air methanol (CH3OH) is made by reacting carbon monoxide and hydrogen at high pressure. Now I can't figure out these three questions: if 25.0 g of CO is reacted with 6.0 g of H2, which is the limiting reagent? How...

Having difficulty calculating molar mass for:

CaCO3 - calcium carbonate
CO(NH2)2 - Urea
Ethylene glycol - C2H6)2

Can anyone HELP!!

what are the subtances for Fe(OH)2 and KMnO4? and how do I figure it out?

are the following substances acid or base?
H2CO3 and HCN
Thank you

What is the direction and change in pH for a 1L sample of buffer solution made to contain 0.1M propionic acid and 0.1M potassium propronate when the following changes are attemped: 1. add 600 mL of your acid from part 1. Is the change a large increase in PH, small increase in PH, no change in pH , s...