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The reaction between silver nitrate and sodium chloride is found to have heat of reaction of -64 kJ ( Delta H of Rxn= -64 kJ). Write a balanced chemical equation and determine the source of the heat?If this reaction occurred in a calorimeter. What is the amount of heat absorbed by the solution if heat absorbed by the calorimeter is negligible.
testing the bounds of natural fibresthe purpose of this experiment is to find out which fabric out of polyester
Calculate the value of Avogadro's number to three significant figures based on these data. (Note: the value may differ from the tabular value).
You have a 4 L bottle of sulfuric acid solution. You take 50.0 mL of this H2SO4(aq) solution and titrate it to the endpoint with a 0.10 M NaOH solution. If the volume of NaOH solution needed is 60.0 mL, the concentration of the sulfuric acid (H2SO..
Describe how would your result be affected if you added the NaOCl solution in 10 seconds rather than 1ml/minute
A sample of sodium metal having a mass of 5.45 g reacts with excess water, and the water is later evaporated. What is the solid product that remains after evaporation, and how many grams of this product are expected to be formed
The minimum frequency of light needed to eject electrons from a metal is called the threshold and find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.27*10^14s^-1.
One of the students in lab decided to use two fractionating columns (one on top of the other) instead of just one. How would this: a) affect the separation between hexane and heptane?
For each of the following reactions, calculate the moles of indicated product produced when 3.00 mol of each reactant is used: a) 4Li(s)+O2(g)-->2Li2O(s) (Li2O). b) Fe2O3(s)+3H2(g)-->2Fe(s)+3H2O(l) (Fe). c)Al2S3(s)+6H2O(l)-->2Al(OH)3(aq)+3H2S(g) ..
determine calorimeter constant b) determine reaction enthalpy for the Zn / HCl reaction c) if ?fHo (ZnCl2 aq) is -482.2 kJ mol-1 and ?fHo (HCl aq) is -165.2 kJ mol-1, what is you percent error
Using the Nernst quation calculate the following EMF of these cells at the non standard states Cu(II)-Zn(II) Fe(II)-Zn(II) Pb(II)-Zn(II) please show work. i dont understand especially calculating Q using the nernst equation.
in the blood plasma, pH is maintained by the carbonic acid-bicarbonate buffer system. a)how is pH maintained when acid is added to the buffer system? b)how is pH maintained when base is added to the buffer system
Complete combustion of methane When methane () burns, it reacts withoxygen gas to produce carbon dioxide and water. The unbalancedequation for this reaction is This type of reaction is referred to as a complete combustionreaction. PART A What coef..
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