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Determine if the entropy change will be positive or negative for the following reactions:
H2 + N2 → NH3
Manila, the most populous city, has approximately 4.12x10^7 people
living in it. The population of the entire National Capital Region (NCR) is
approximately 3.1X10^8 people. About how many times greater is the
population of NCR than the population of Manila?
Instead of silver nitrate, what other salt could be used to differentiate fluoride from the heavier halides?
40 grams of 80% NaOH was added to 250 cubic centimetre solution of 3 moldm^-3 NaOH. Calculate the new concentration.
In the sample of Aluminum Oxide (Al2O3), there are 48g O for every 54g of Aluminum. What is the ratio of Aluminum to Oxygen?
If you have 3.5 moles of hydrogen and 5 moles of nitrogen to produce ammonia, how much nitrogen is used up?
The following equation is 2H2 + O2---2H2O
If 5.0 grams of H2 reacts completely with O2, how many grams of H2O will be produced?
Note on symmetry properties of molecule: molecular polarity, chirality and optical activity
If 3.0 mol CO reacts with 1.0 mol 02
the mass in grams of HCI needed to react with 12.8g of alumimum
