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How many moles of NaCl2 can be formed in the reaction of 5.00 mol of Ni and 10.0 mol of HCl
Given the following thermochemical equation, calculate the heat (in kJ) involved in decomposing 18.0 g of water to give one mole of (g). 2H2 + O2 ---> 2H2O change in heat is -571.6 Kilojoules a.
What is the enthalpy change associated with the formation of 0.58 mol H2O in the following reaction? CH4 + 2O2 ---> CO2 + 2H2O change in heat is 890.3 Kilojoules a. 516 b. 258 c. -1530 d. -258 e.
Although the actual process also requires water, a simplified equation for rusting (rust is shown as Fe2O3) is 4Fe(s) + 3O2(g) => 2Fe2O3(s) ?Hrxn = -1.65 x 103 kJ How much heat is evolved when 0.
The combustion of carbon with excess oxygen forming carbon dioxide is exothermic. C(s) + O2(g) => CO2(g) ?Hrxn = -393 kJ If 5,284kJ of heat is needed from the combustion, how much carbon (g) must
use any resources available to you to find the structures of these drugs and then identify the functional group or
calculate the molar heat of combustion of liquid methanol . a. -8.17 x 105 kJ/mol b. -817 kJ/mol c. 1.88 kJ/mol d. -0.8 kJ/mol e. none of the above
At high temperature, ammonia reduces copper(II) oxide to the free metal: Step 1: 2NH3(g) + 6CuO(s) => N2(g) + 3Cu2O(s) + 3H2O(g) Step 2: 2NH3(g) + 3Cu2O(s) => N2(g) + 6Cu(s) + 3H2O(g)
Give the balanced equation for the reaction: formation of 1 mol nitrogen dioxide from its elements (heat is absorbed)
Based on the sign of E°cell, classify these reactions as spontaneous or nonspontaneous as written. Assume standard conditions. Zn^2+ (aq) + Sn(s) --> Zn(s) + Sn^2+(aq) Al^3+ (aq) + 3Na(s) --&
Complete and balance the equation for this reaction in acidic solution. ZnS + NO3^- -> Zn^2+ + S + NO Which element was Oxidized. Which element was reduced ? Which species was the oxidizing agent
One of the most common causes of inaccurate melting points is too rapid heating of the melting point apparatus near Tmelt. Under these circumstances, how will the observed melting point compare to t
In analysis of interhalogen activity, 0.110 mol of ICl was placed into a 1.00 L flask and allowed to decompose at a high temperature: 2 ICl(g) <=> I2(g) + Cl2(g) Given that Kc = 0.361, calcula
Electron dot formulae (Lewis structures) with only the valence electrons, show the bonding - Write balanced equations
Hydrocarbons are often reacted with steam to form H2, as shown for propane- C3H8(g) + 6 H2O(g) <=> 3 CO2(g) + 10 H2(g) Calculate Kp for this reaction at a particular temperature
Calculate the pH at the following points (volumes of NaOH added) along the titration curve for leucine. Also, sketch the titration curve for this concentration and volume of leucine with NaOH. a. 0
How many air molecules are in a 13.5 ft x 12 ft x 10ft room? Assume atmospheric pressure of 1 atm, a room temperature of 20.0 degrees Celcius and ideal behavior. There are 28.8 L in 1 cubic foot.
What is the role of sodium sulfite in the experimental procedure of the creation of Benzoic acid. -I know that it breaks down any remaining bleach that did not react, but can someone please explain
For the reaction: PbCl2(s) ? Pb2+(aq)+2Cl1-(aq), what is Q* when 3.9 mL of 0.080 M lead nitrate is added to 13 mL of 0.020 M sodium chloride? Ksp of lead chloride is 1.6 x 10-5 M3.
To find the value of the equilibrium constant at each temperature you must first find the value of G0 at each temperature by using the equation G0 = H0 - TS0 For this reaction the values are H0 = +8
Given that 318 kJ of heat are released for each mole of Fe3O4 formed, what is the enthalpy change of the balanced reaction of formation of Fe3O4 from iron(ii) oxide and oxygen
The equilibrium will shift towards product and Keq will increase. B)The equilibrium will shift towards reactant and Keq will decrease.
In the stepwise trihalogenation process of the methyl group in acetophenone the methyl group is initially deprotonated. This deprotonated species which bears a negative charge on the carbon atom is
What happens to the amount of ionisation as we increase the ionic strength of a solution? What happens to the solubility of a salt and what is meant by the various terms we use when discussing analy
This deprotonated species which bears a negative charge on the carbon atom is stabilized by resonance. -Please explain how it stabilizes, and show the other contributing resonance form and name this