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Calculate the stoichiometric ratio for the mass loss of C02 and H20 per gram of NaHC0
A mixture of H2 and NH3 has a volume of 142.0cm3 at 0.00?C and 1.00 atm. The mixture is cooled to the temperature of liquid nitrogen at which ammonia freezes out and the remaining gas is removed from the vessel. Upon warming the vessel to 0.00?C a..
a solution contains the sodium salt of an anion. the followingtests are performed to identify the anion.1 the solution
Draw Lewis structures of the four molecules and/or ions with the formulas given below and figure out which two of these are isoelectronic with each another.
(alpha)-Synuclein is a protein that makes membranes, including vesicles bend. It can bend spherical vesicles into tube-like shapes called tubules. The molecular weight of (alpha)-synuclein is 15,400 g/mol.
A solution is made by dissolving 847.1 cg of hydrochloric acid, HCl, in 0.1512 kg of water. What is the concentration in parts per million
What is the maximum amount of Cl2 that can be produced by this reaction. Calculate the amount of excess reactant.
13-Chlorophyll found in plant cells as well as essential to the process of photosynthesis, contains 2.72% Mg by mass. Presuming one magnesium atom per chlorophyll molecule, Compute the molecular weight of chlorophyll.
For what signs of ?H and ?S will a process be spontaneous at high temperatures but not at low temperatures? not be spontaneous at any temperatures
How many liters of dry carbon dioxide gas, measured at standard conditions will be evolved when 400 mL of a 0.20 M sulfuric acid are treated with an excess of potassium carbonate
An organic substance has an enthalpy of vaporization of 29.0 kJ/mol. The compound has a vapor pressure of 524 mm Hg at 25 °C. At what temperature is the vapor pressure equal to 115 mm Hg?
Brass has a specific heat capacity of 0.393 Joules/g C. A paperweight weighing 129g is heated to 95.0 C. Then it is added to 44.6g of water in a calorimeter having a temperature
If you are given a 0.25 g piece of sodium metal to react with water, how many moles of HCl would it take to neutralize the sodium hydroxide produced
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