Calculate how much energy is required to heat 20 mL of water from room temperature to 40 C & also how much energy is released when 20 mL of water is cooled from the initial temperature to 10 C
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How to name organic molecule given a structure?
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Would you expect each of the following atoms to gain or lose electrons when forming ions? Explain details and what is the rule apply to it? 1. P 2. Te
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A 83.0 mL sample of 0.0200 M HIO4 is titrated with 0.0400 M CsOH solution. Calculate the pH after the following volumes of base have been added. (
a) 11.6 mL
pH =
(b) 40.7 mL
pH =
(c) 41.5 mL
pH =
(d) 43.6 mL
pH =
(e) 75.5 mL
pH =
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Calculate the pH at the equivalence point in titrating 0.045 M solutions of each of the following with 0.061 M NaOH.
(a) hydrochloric acid (HCl) pH =
(b) acetic acid (HC2H3O2), Ka = 1.8e-05 pH =
(c) hypoiodous acid (HIO), Ka = 2.3e-11 pH =
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which do you think has a greater effect on evaporation
rate: molar mass or the type of intermolecular force(s) present?
Explain your answer
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What are the four colligative properties (module #4 pg 38)?
If you add NaCl to water, what happens to the boiling point?
Explain with a drawing why the freezing point of seawater is lower than the freezing point of freshwater
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Determine the %(p/p) of CaCO3 of a 25 mg chalk sample dissolved in 25 mL water, 12.5 mL HCl 0.1 M, titrated with 8.6 mL NaOH 0.1 M.
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which compound the greatest lattice energy?
AIP vs AIN
KCl vs KBr
NaCl vs NaBr
MgO vs MgS
NaCl vs KCL
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Considering the ionic equilibrium of your artificial kidney stone, how could you manipulate the chemical environment to decrease the solubility of your stone? What would be the effect of the solubility of your kidney stones if you utilized a strong acid/base versus a weak acid/base?
The kidney stone my group and I used was a calcium phosphate stone.
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Iodine-137 decays to give xenon-137, which decays to give cesium-137. What are the modes of decay in these two reactions?
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Write the molecular equation, complete ionic equation and Net
ionic equation for the following:
(a) NaC2H3O2
+H2SO4 =
molecular equation----
Complete Ionic equation---
Net ionic Equation-----
(b) CuSO4 + NH3
Molecular equation---
Complete ionic equation---
Net ionic equation-----
(c) KI + AgNO3 =
Molecular equation
Complete ionic equation
Net ionic equation
(d) KI + AgNO3 +NH3 =
Molecualar equation-----
Complete ionic equation----
Net ionic equation-----
(e) K2CrO4 +
Pb(NO3)2
Molecular equation----
Complete ionic equation----
Net ionic equation-----
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Write the IUPAC name for each of the following compounds:
a. [Cr(NH3)5Cl]2+
b. [W(NH3)3(H2O)3]2+
c. [Fe(H2O)6]3+
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