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Give the complete ionic equation for the reaction (if any) that occurs when aqueous solutions of lithium sulfide and copper (II) nitrate are mixed.
Calculate w (in kJ) when 390 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 426 K.
Calculate the molar concentration of uncomplexed Zn2+ in a solution that contains 0.20 mole of Zn(NH3)42+ per liter and 0.0116 M NH3 at equilibrium.
1-bromobutane was added to a solution of sodium iodide in acetone. One of the possible side products of this reaction is dibutyl ether. Provide the mechanism of thus molecule.
The temperature of a lead fishing weight rises from 26 degrees Celsius to 38 degrees Celsius as it absorbs 11.3 J of heat. What is the mass of the fishing weight in grams.
Explain your answer. Could you still identify what those amino acids were? Explain your answer. What can you not do?
Concentration : Dilution Problem, A student placed 18.5g of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-mL mark on the neck of the flask was ..
How much heat must be supplied to 38 g of ice at -22°C to convert it to steam at 147°C? (Specific heats: ice = 2.0 J/g·°C; water = 4.2 J/g·°C; steam = 2.0 J/g·°C. Molar heat of fusion of water at 273 K = 6.01 kJ/mol. Molar heat of vaporization of ..
Calculate the pH at each of the following points in the titration of 50 mL of 0.2000M acetic acid using 0.222M NaOH. Ka= 1.8 x 10^-5 (show work)
Suppose a student is measuring the optical rotation of a 1 M sample of (S)-(-)- Limonene. The path length is 13cm. What optical rotation should the student expect to measure?
What if you were designing an engine for a SUV that produced 2.40 × 102 L/s of exhaust with a CO content of 1.9 mg CO per 1L of exhaust? What volume of catalytic matrix would you need to reduce the CO emission in this automobile?
How many moles of hydronium ion are neutralized by one teaspoonful of Extra strength Maalox plus?
at 710. mm hg a sample of nitrogen gas occupies 625 ml what volume does the gas occupy if the temperature constant and the pressure increases to 760. mm hg
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