Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
It is recognize that the air is the mixture of many gases. To calculate the molar mass of air need to consider the three main components: nitrogen, oxygen, and argon.
Copper metal 5.00g piece is added to a colorless aqueous solution which have 20.0g of Zn(No3)2. The products that form are a water soluble a gray metal and the blue ionic compound.
Explain why is it important to use the anhydrous conditions with LiAlH4? Why the temperatures affect NaBH4 reactivity? And explain how?
The NH4NO3 a 1.00 g sample is decomposed in a bomb calorimeter. The temperature enhances by 6.12°C.Determine the molar heat of decomposition for ammonium nitrate?
Assume that photons of blue light are used to locate the position of a 2.80 g Ping-Pong ball in flight and that the uncertainty in position is equivalent to one wavelength. Explain the minimum uncer
With the smaller sodium ions occupying holes among the chloride ions, the Sodium chloride crystallizes in a face-centered cubic lattice of chloride ions. Determine the number of Cl- ions are in cont
At 60°C a mixture of 100 g of K2Cr2O7and 200 g of water is stirred until no more of the salt dissolves. The resulting solution is poured off, leaving the un-dissolved solid behind.
Determine the equilibrium pH of an aqueous solution that have the 2.55 g of Al(OH)3 (s) ksp= 2.00x10-32. also, find out the activity coefficient of Al3+
Evaluate the relative reducing strengths of the NaBH4 and LiAlH4. Explain what types of functional groups are reduced by each?
A current was maintained for 20 minutes at 25.0 amps by a solution having the surplus Cu2+. Explain how much Cu is plated out on cathode?
At 100degrees C if a 58g sample of metal is placed into a calorimeter that having 60 g of water at 18 degrees C, the temp of the water raised to 22 degrees C.
The formula of Morphine has C15H12NO3. Morphine is a base and accepts one proton per molecule and it is isolated from the opium. A 0.681g sample of opium is found to involve the 8.93mL of a 1.17&tim
If the gas is initially at 200oC and 800 KJ of heat is added into the system than what is the change in entropy of 10 mol of ethylene? Suppose secure atmospheric pressure and flow process and flow
Determine the percent yield of ammonia if 100.0g of nitrogen is reacted with surplus the hydrogen and 34.0g of the NH3 are obtained.
By submitting graphite to high pressure the diamonds have successfully been prepared. Analyze the approximate minimum pressure required using ΔfG=0 for graphite and ΔfG=2.90 x 103 J/
When Ar is added until the total pressure is 100bar determining the vapor pressure above liquid ethanol at35.0oC. The true vapor pressure is 100.0Torr and the density of liquid ethanol at this tempera
A solid exists in two forms that is A and B and their densities are 3.5155g/cm3 and 2.2670g/cm3, respectively. Analyze the pressure at which the two forms of the solid are in equilibrium at 25oC
There are various members of a class of compounds that is alkenes react with the hydrogen to create corresponding alkenes. Termed hydrogenation, this type of reaction is used to create the products
Determine the frequency of the light which is emitted by a hydrogen atom during a transition of its electron from the n= 4 to the n = 2 principal energy level.
At 15.0 atm a sample of an ideal gas and 1.0L is permitted to expand a constant external pressure of 2.00 atm at a constant temperature. For the gas expansion estimate the work in units of kJ.
Assume initially at 25.00 oC you have 20.81 g of water, in a perfectly insulated jug. Until the combined sample of water has a temperature of 58.71 oC, you add water which is at 83.71 o
A magnesium hydroxide solution is found to at 25C have a pH of 12.09. Determine hydroxide ion and the hydronium concentrations in the solution. Then compute the mass of magnesium hydroxide required
Conclude the concentration of oxygen in the air above the water in mg/L at equilibrium when the Henry's constant for oxygen in water is 4.02*106 kpa/mol fraction and the pressure in the containe
Compute the numerical values of Q, W, ΔH and ΔU for the whole process by the use of steam table, in which one pound of liquid water is initially confined in a capsule at the 327.8o F&nbs
When the product of Ethyl propionate +diethyl oxalate + 1)NaOCH2CH3, then 2)H3O+ is heated with aqueous acid than what product is formed?