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What is the precipitate when 4.9 grams of solute are used to prepare 100 ml of calcium nitrate?
A sample of gas has a volume of 2 liters at 40 degrees celsius. what volume will the gas occupy at 0 degree celsius.
What are those byproducts? to remove the byproducts from the organic phase
What is the sign of the entropy change for the heat transfer. You probably know that when two objects at different temperatures are brought into contact, heat always travels from the hotter object to the colder object; never the reverse.
Add HCl or NaOH to 1.00 L of 1.00 mol L-1 HA(aq) to obtain a solution with a pH of 4.00 at 25oC? How many moles of HCl or NaOH are required
The thermodynamic properties for a reaction are related by the equation that defines the standard free energy, Delta G circ, in kJ/mol: Delta G circ=Delta H circ-T Delta S circ where Delta H circ is the standard enthalpy change in kJ/mol and Delta..
How do you balance the below equation and identify the oxidized and the oxidizing agent?Cu + HNO3 --> Cu(NO3)2 + NO2 +H2O
Initially a mixture contains 0.629 mol each of N2 and O2 in an 6.64-L vessel. Find the composition of the mixture when equilibrium is reached at 3900°C. For the reaction below, the Kc = 0.0123 at 3900°C.
If the temperature of a gas confined to such a cylinder is raised from 245 degrees C to 605 degrees C, what is the ratio of the initial volume to the final volume if the pressure exerted on the gas remains constant
Understanding of Chemistry basics - explain a situation that violates the second law of thermodynamics?
gout is caused by an error in nucleic acid metabolism that leads to a buildup of uric acid in body fluids which is
A concentrated solution is 68% nitric acid in water and has density of 1.39 g/ml. How many mL of this nitric solution will completely and exactly react with 143g of cu metal
Nitrogen gas (N2) reacts with hydrogen gas (H2) to form ammonia (NH3). At 200°C in a closed container, 1.04 atm of nitrogen gas is mixed with 2.03 atm of hydrogen gas. At equilibrium the total pressure is 2.03 atm. Calculate the Kp value for this ..
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