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(b) What is the partial pressure in atm of each component of this mixture if it is held in a 13.70-L vessel at 12°C? O2 mixture of 5.10 g of O2, 7.44 g of N2, and 1.26 g of H2? atm N2 atm H2 atm
How many liters of oxygen gas, at standard temperature and pressure, will react with 25.0 grams of magnesium metal? 2 Mg + O2 yields 2 MgO
calcium oxide or lime is produced by the thermal decomposition of limestone in the reaction cacomc062-1.jpgs
170 ml of an hcl solution with ph of 2.30 is added to 200 ml of an hno3 solution. the resulting ph is 1.40. what was
A 30.0 mL sample of 0.30M HClO (aq) is titrated with 0.20 M NaOH (aq). Ka of HClO is 3.5*10^-8. What is the pH of the solution when 5.0 ml more of NaOH is added in the titration.
3H2+N2=How many grams of NH3 can be produced from 3.91g of N2?
Consider the following isomerization reactions of some simple sugars and values for their standard Gibbs free energy ΔG °:
A sugar-water mixture contains 45.8 g of sugar and 108.5 g of water. What is the percent by mass of sugar and the percent by mass of water in the solution?
If 160 mL of wet h2 is collected over water at 24 degrees Celsius and a barometric pressure of 738 torr , how many grams of Zn have been consumed? (The vapor pressure of water is 22.38 torr.)
We use standard addition methods when our sample has matrix effects which are hard to duplicate in a blank. Let's again find the amount of Pb+2 in a blood sample. A 5.00 mL blood sample containing lead yielded a signal of 0.712 units.
When 2-propanol was used as the developing solvent, two substances moved with the solvent front (Rf = 1) during TLC analysis on a silica gel plate. Can you conclude that they are identical? If not, what additional experiment would you perform?
Phenol (C6H5OH, also called carbolic acid) has a pKa of 9.89. It is used to preserve body tissues and is quite toxic. Calculate the percent ionized in 0.0503 M phenol--a dilute solution.
At equilibrium 1.97e-02 mol of NOCl is found in the reaction mixture. Calculate the equilibrium pressures of all gases in the reaction vessel and the value of KP for the reaction. Pick the correct statement from the multiple choices. Use the value..
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