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Question- What bonds or attractive forces have to be broken in order for ethane to dissolve in water? Is the breaking of these bonds exo or endothermic?
What bonds or attractive forces form if ethane mixes with water? Is the formation of these bonds exo or endothermic?
Do water molecules and ethane molecule actually repel each other?
How is entropy related to the mixing of ethane and water?
Explain each and every step in detail. I need proficient help in the above problems.
A 0.150-mole quantity of NiCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Ni2 ions at equilibrium. Assume the formation constant* of Ni(NH3)62 is 5.5 × 108.
the value of which concentration unit for a solution changes with temperature a. molarity b. molality c. mole fraction
The IR spectrum of 1- hexyne shows a sharp absorption peak near 2100 cm-1 owing to the CC triple bond stretch. The IR spectrum of 3- hexyne shows no absorption in this region because
Problem- If the formation of a grignard reagent does not begin spontaneously when Mg metals and a solution of an alkyl halide in ether are mixed, one sometimes adds a small amount of iodine to the flask. What substance is formed from the reaction ..
You are using a Geiger counter to measure the activity of a radioactive substance over the course of several minutes. If the reading of 400. counts has diminished to 100. counts after 35.2 minutes, what is the half-life of this substance
Question- A sample of gas at a pressure of 1.79 atm and a temperature of 21.2oC is heated to 48.5oC. If the gas expanded to 2.59L from 2.12L, what is the pressure of the heated gas
An unknown gas that occupies 1.00 L at a pressure of 534 torr and a temperature of 295.7 K weighs 0.9847 g. What is the molecular mass of this gas
solution made from 6.50g of an unknown compound in 27.8g of diphenyl has a molality of .195m. Calculate the molar mass of the unknown.
What is the molality of a solution in which 25 g of sodium chloride is dissolved in 2.0 kg of water
if the oxalic acid in a 50.0 ml of aqueous spinach extract was titrated with 0.0250 molarity naoh and the 1st
The vapor pressure of water above this solution is found to be 0.3624 atm at 348.0 K. The vapor pressure of pure water at this temperature is 0.3804 atm.
How many reducing ends are in a molecule of corn starch (amylopectin) that contains 200,000 residues with a branch every 100 residues? Explain
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