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What is the definition of a Pure substance and what are two examples of pure substances?
Calculate the molality of total ions in an acqeous solution prepared by dissolving 0.400 moles of magnesium chloride in 850.0 g of water?
The rate constant for a certain reaction is = 6.10×10?3 . If the initial reactant concentration was 0.750 , what will the concentration be after 18.0 minutes
A mechanism for the decomposition of ozone (2O3 --> 3O2) is O3 --> O2 + O; O + O3 --> O2 + O2 What is the molecularity for the first and second elementary reactions?
If the rate of formation of c at a certain time in the reaction 2A+B gives 3C+D was to be 2.5 mol/l.s, what is the rate of reaction of A and B and What is the rate of formation of D.
Devise at least two ways that carbon dioxide emissions could be reduced without reducing the ammonia production rate (400 tons/day)
a 25-rm g sample of an alloy at 88circ c is placed in 50. rm g water at 13circ c. if the final temperature reached by
If a weak acid solution, HA is 0.3M and ionizes 1%, what will be the concentrations of [HA], [H3O+],and [A-] at equilibrium
How many moles are in 8grams of sugar if its in 25 ml of water
How many Valence electrons, bonding electrons, and lone pair electrons are present
What mass of glucose can be produced from a photosynthesis reaction 6CO2(g) + 6H2O-> C6H12O6(aq) + 6O2(g) that occurs using 18.4 mol CO2? Answer in units of g.
A reaction with the activation energy Ea= 153.00 kJ/mol, has a rate constant k = 6.400 x 10(-4) at 364.00 Kelvin. Determine the temperature required to increase the rate constant 5 times . R = 8.314 J K-1mol-1
The net energy EN is just the sum of the two expressions above. Determine (a) the minimum bonding energy, E0, and (b) the equilibrium interionic distance, r0.
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