Calculate how much energy is required to heat 100 g of ice @ 0 degrees Celsius to steam @ 100 degrees Celsius.

Calculate how much energy is required to heat 100 g of ice @ 0 degrees Celsius to steam @ 100 degrees Celsius. Draw diagram of temperature versus time for water being heated Heat of fusion of water = 6.02 kJ/ mole Heat capacity of liquid water = 4.18 J/degree Celsius x g Heat of vaporization of water = 40.7 kJ/ mole

Element Compounds

I need to know what element compunds are and what their properties are. I am doing a presentation and am having a difficult time finding this information. - Definition of element compounds - properties of element compounds - examples of element compounds - what element compounds are used for... etc.

Balancing half cell reactions

Balance both equations by the half-cell method,showing both half-cell reactions idenitfing them as oxidation or reducton. a. Cl2(g)+ OH- <--> Cl- + ClO3- + H20(l) b. SO4- + I- + H+ <--> S2- + I2(g) + H2O(l)

This problem deals with hydroxide ions.

Given the concentration of hydroxide ions, use the ion product constant of water to calculate the concentration of the other ion at 298 K. OH = 1.3 times 10 to the negative 2 power M

Looking to calculate the pH level

Calculate the pH at 298K of solutions having the following ion concentrations. H+ = 5.8 times 10 to the negative 11 power M

Calculating pOH and pH

Calculate the pOH and pH at 298K of solutions having the following ion concentrations. OH = 1.3 times 10 to the negative 2 power M

Neutralization Reactions

In a titration, 33.21 mL 0.3020M rubidium hydroxide solution is required to exactly neutralize 20.00 mL hydroflouric acid solutioon. What is the molarity of the hydrofluoric acid solution?

Neutralization Reactions

A 35.00 mL sample of NaOH solution is titrated to an endpoint by 14.76mL 0.4122M HBr solution. What is the molarity of the NaOH solution?

This deal with calculating molarity

What is the molarity of a solution formed from 20.0 grams of NaCl dissolved in 650.0 mL of H2O?

This deals with acids and bases

250.00 mL of 6.500M HCl contains how many grams of HCl?