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Assuming that the initial pressure of X(2)(the 2 is at the bottom) was 0.10 bar, calculate the value of K for the decomposition.
Which of these is a stronger acid from greatest to least. I know that CH3COOH, HF, and H3PO4 are weak acids and HI and H2So4 are strong acids.
The solubility of air in water is approximately 2.1 x 10^-3 M at 20 degrees C and 1.0 atm. Calculate the Henry's lay constant for air. Also, is the K(H) value of air approximately equal to the sum o
Write the net ionic equation for the reaction that occurs when an aqueous solution of hydrochloric acid reacts with an aqueous solution of ammonia. please find delta H also. Or at least give me the
the molar mass is not identical, the molar mass of Br2 is only 159.80 g/mol compared to 162.35 g/mol for ICl F: ICl is polar while Br2 is nonpolar
Write the net ionic equation for the reaction that occurs when an aqueous solution of hydrochloric acid reacts with an aqueous solution of ammonia.and find delta H
What is the probability of a 14C decay taking place in the lungs during a single breath? The atmosphere is about 0.04% CO2, and in an average breath we inhale about 0.5 l of air and exhale it about
the polar liquid will have the higher boiling point, since its molecules have dipole-dipole interactions. e. they will have similar boiling points, since the dispersion forces depend upon molar mass
The value of delta H for 2CO(g) + O2 (g) = 2CO2(g) is -482 kJ. Calculate the heat released to the surroundings when 38.5 g of O2 (g) reacts with excess CO
Rank the following ionic compounds in order of increasing attraction between their ions: BaO, BaCl2, and CaO.
The student starts with 0.97 moles of benzoic acid and 7.8 moles of methanol. At the end of the experiment 0.9 moles of methyl benzoate are isolated
Phosphorous pentachloride forms from phosphorus trichloride and chlorine: PCl3(g)+Cl2(g)->PCl5(g) given: ?Ssys=-170.2J/K, ?Ssurr=295.0J/K, ?Stotal=124.8J/K, reaction is spontaneous under standar
The possible compounds are listed below. Two methods of positive identification are required for each compound. Benzoic acid benzoin 1,4-dibromobenzene flourene o-Toluic Acid 4-aminoacetophenone
Heart pacemakers are often powered by lithium-silver chromate "button" batteries. The overall cell reaction is: 2 Li(s) + Ag2CrO4(s) ? Li2CrO4(s) + 2 Ag(s) The overall cell potential is 3.5V. What i
Consider the reaction A? B Assuming ?G?f (A) = 8.066 kJ/mol and ?G?f (B)= 12.24 kJ/mol, what is the equilibrium constant for this reaction at 25 oC
A weak acid HA (pKa = 5.00) was titrated with 1.00 M KOH. The acid solution had a volume of 100.0 mL and a molarity of 0.100 M. Find the pH at the following volumes of base added and make a graph of
Tritium (symbol T) is produced in the upper atmosphere by neutron cosmic rays primarily through the 14N(n,T)12C and 16O(n,T)14N reactions.
Explain, mechanistically, why the observed result of the bromination of trans-stilbene is anti addition of bromine, as opposed to syn addition
Balance the following equation in basic conditions. Phases are optional. SO3 2- + Co(OH)2 yields Co + SO4 2-
Cavendish prepared hydrogen in 1766 by rather quaint method of passing steam through a red hot gun barrel. H2O + Fe ---> Fe2O3 + H2 (unbalanced) What volume of H2 at a pressure of 820 torr and a
What is the pressure in atmospheres in a 50.0L balloon at 25?C filled pure hydrogen gas produced by the reaction of 45.9g of CaH2 with water? ( show all work) CaH2 + H2O ---> Ca(OH)2 + H2
Aluminum reacts with oxygen gas in a combination reaction to produce aluminum oxide. How many moles of oxygen gas are needed to react with 1.64 moles of aluminum
strontium nitrate and calcium carbonate are soluble salts B. barium fluoride and lithium chloride are soluble salts C. barium nitrate and sodium phosphate are soluble salts