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A 13.6 g of copper at 90.5 degrees celsius is dropped into 150.0g of water at 20.0 degrees celsius. The specific heat of copper is 0.385 J/g.K
What is the final temperature in the resulting mixture?
In the balanced molecular equation for the neutralization reaction between phosphoric acid and potassium hydroxide, the products are: a. 3H2O b. K3PO4 + 3H2O c. KPO4 + H3OH d. K+(aq) + PO43-(aq) + 3H+ + 3OH-
Calculate the percent manganese in the sample as Mn3O4 (only part or none of the manganese may exist in this form, but we can make the calculations on the assumption that it does)
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
Compute the molar concentrations of these gases under conditions typical of (a) the mid-latitude troposphere (10°C and 1.0 atm) and (b) the Antarctic stratosphere (200 K and 0.050 atm).
Scrubbers use aqueous slurries of calcium hydroxide to remove the SO2 from flue gases. Write a balanced equation for this reaction
You have discovered a basic amino acid. its carboxyl group pKa is 1.92. its amino group pKa is 10.03. its side chain pKa is 11.98. What is its pl
Mixed Aldol Each of the following compounds can be prepared by a mixed aldol condensation reaction. Give the structure of the aldehyde and/or ketone precursors for each aldol product and formulate the reaction.
Write the equation of the cell reaction and indicate cathode and anode half-cells for the electrochemical cell formed from a Mg/Mg^2+ half-cell and In/In^3+ half-cell.
If a solution contains 0.60 mol of OH^-, how many moles of H^+ would be required to reach the equivalence point in a titration?
Emma is analyzing a sample which contains some zinc in it. The sample is .198 g. She reacts it with an excess of hydrochloric acid and measures hydrogen gas produced. The determination shows the sample to be 84% zinc.
Ozone, O3, acts as filter of harmful UV radiation in the stratosphere by absorbing light with a wavelength of 290 nm. The photon at 290 nm causes an O-O bond in O3 to give O2 and O. Draw Lewis resonance structures of Ozone molecule
Write the balanced equation for the reaction involved in the synthesis of acetanilide from aniline and acetic anhydride.
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