A mixture of gases contains 5.77 moles of oxygen (O2), 0.94 moles of hydrogen (H2), and 9.19 moles of nitrogen (N2). Calculate the partial pressures of the gases if the total pressure is 4.00 atm at a certain temperature.
The concentration of S2O3^2- used in the practical work 0.004M . If you were to triple this concentration, explain
if delta t would change
if reaction orders would change
How many liters of F2 will be required at a temperature of 35 and 2200 mmHg pressure to consumer 45 grams of O2?
O2 + 2F2 à 2OF2
A mixture of gases contains 5.77 moles of oxygen (O2), 0.94 moles of hydrogen (H2), and 9.19 moles of nitrogen (N2). Calculate the partial pressures of the gases if the total pressure is 4.00 atm at a certain temperature.
How many liters of F2 will be required at a temperature of 35 and 2200 mmHg pressure to consumer 45 grams of O2?
O2 + 2F2 à 2OF2
Complete the following reactions and identify what type of chemical reaction it is.
a. Mg + Se
b. Be + I2
c. Rb + NO3
Show the mechanism of formation of tripeptide
Calculate crystal field stabilization for each d-sysytem given.
CUBIC
d4, d6, d9
1/Calculate the volume of NaOH conc = 0,12 mol/dm3 needed to neutralize 10 cm3 HCl conc 0,20 mol/dm3.
2/ Calculate how much NaOH conc 0,10 mol/dm3 will be used in titration of 12 cm3 H3PO4 conc 0,20 mol/dm3 with use of a) methyl orange b) phenolphtalein.
3/ KMnO4 is stadardised with H2C2O4. For it 28,8cm3 of KMnO3 is used and 0,276g H2C2O4x 2H2O. What is the concentration of KMnO4?
A sample of ammonia (NH3), a colorless gas with a pungent odor, occupies a volume of 2.00 L at a pressure of 645 mm Hg and a temperature of 25°C. What volume, in liters, will this NH3 sample occupy at the same temperature if the pressure is increased to 725 mm Hg?