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Question - Help please! (The experiment being referred to is a simple acid/base titration with an unknown acid)the equations used in this experiment would have to be modified slightly if an acid with Ka of 1.0x10^-3 or greater were used as an unknown. Assuming such a situation, explain the problems that would result from the use of the equations in their present form. What modifications would you make to give accurate results when using such an unknown?
Please take care to reply the question as mark are evenly granted for each point
Calculate the number of grams of oxygen obtained by the total decomposition of 149.5 grams of KClO3
Adipic acid with melting point 151c is added to succinc acid of 185 c what is the effective in melting point
Compute delta Hf for CaC2 : CaC2 + 2H2O-->Ca(OH)2 +C2H2 From the given enthalpy of reaction data as water(H2O) =(2*-285.83),calcium hydroxide Ca(OH)2=(-986.2) , AcetyleneC2H2 =(226.77)?
calculate enthalpy change for the quantity of zinc reacted. Be sure to follow the significant figures convention in the answer you report.
Problem- A solution contains 1.0x10^-3 M Cd+2 and Fe+2 ions that has a pH of 1.70. If the solution is saturated with H2S will either or both of these ions precipitate. Calculate the concentration of either of both ions remaining in solution. pKsp ..
The mass spectrum of an organic compound shows the relative abundances of M to be 69.72% and M 1 to be 6.033%. Assuming the peaks are caused by 12C and 13C isotopes, determine the number of carbon atoms in the compound. Natural abundances: 12C is ..
The change in the Gibbs energy of a certain constant-pressure process as a function of temperature was found to fit the expression ?G (J K-1)=-73.1 J +42.8T. Calculate the value of S for the process.
Assuming that the formal charge on the central atom can't be larger than +/- 1, what is the number of important resonance forms for this ion
Draw the three organic product and the one inorganic product of the following acid catalyzed dehydration reaction.
Suppose the other isomer of PtCl2(NH3)2 is given the same treatment, it yields the second isomer of [Pt(NH3)2(py)2]Cl2, as well as finally a mixture of PtCl2(NH3)2 and PtCl2(py)2. Recognize the starting and product isomers as either cis or Trans.
Rather than weigh the sample on a balance a chemist wants to dispense the liquid using a pipette. What volume (in mL) should she measure out?
From this information and the atomic mass, calculate the edge length of the unit cell. Now assume that rubidium atoms are spheres. Each corner sphere of the unit cell touches the body centered sphere. Calculate the radius of a rubidium atom.
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