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1.994 g sample of ethanol, CH3CH2OH, is combusted in a bomb calorimeter. The temperature of the calorimeter increases by 10.91 K. If the heat capacity of the bomb is 615.5 J/K and it contains 1.150 kg of water, what is the internal energy change per mole of ethanol combusted? The specific heat capacity of water is 4.184 J/g·K and the molar mass of ethanol.
A 50.00-mL sample of aqueous Ca(OH)2 requires 34.66 ml of a 0.966 M nitric acid for neutralization. Calculte the concentration (molarity) of the original solution of calcium hydroxide
The solubility of a gas in H2O at a temperature of 25 °C and a pressure of 1.2 atm is 0.042 M. What will the solubility of the same gas be in H2O at the same temperature at 3.4 atm.
rigid container of fixed volume holds 0.10 mol of ch4g and 0.20 mol of arg with a total pressure of 600 torr. what
a small bar magnet experiences a 2.1 x 10-2nm torque when the axs of the magnet is at 45 degree to a 6.00 10-2 t
Given there is an increase in volume, which increases possible microstates, how can there be no increase in entropy?
Determine which metal will reach the lowest temperature If the same amount of heat is added to both the metals?
A 6.50 gram sample of an ore containing chromium is dissovled and then treated with an excess of Na3PO4 (aq), which precipitates out all of the chromium in the ore as chromium (III) phospate, CrPO4.
How many moles of CH_3_COOH are present in the beaker? What is the concentration of acetic acid?
kmno4 h2so4 naso3 --gt?sodium sulfite and acidified potassium permanganate produces a brown partly dissolved solid
question calculate the sodium ion concentration when 70.0ml of 3.0m sodium carbonate is added to 30.0ml of 1.0m sodium
What are the relative percentage of HCN and cyanide ion in a dilute aqueous solution at pH+9.2/ At pH=10.2
Identify the potential donor atoms in each of the following Lewis bases and classify the donor atom(s) as hard soft or borderline bases
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