What are the respective concentrations (M) of Fe3+ and I- afforded by dissolving 0.200 mol FeI3 in water and diluting to 725 mL? YOU MUST SHOW YOUR WORK FOR THIS PROBLEM

Arrange the following gases in order of increasing average molecular speed at 25 °C.                                           He, O2, CO2, N2

 When the following equation is balanced, the coefficients are ________.                                       Al(NO3)3 + Na2S → Al2S3 + NaNO3

The correct answer (reported to the proper number of significant figures) to the following is _______.                                           6.3 × 3.25 = ________

A 17.2 g sample of potassium chlorate is dissolved in 250 g of water at 65 °C. The solution is cooled to 30.0 °C and no precipitate is observed. This solution is ________.

Which one of the following conditions would always increase the internal energy of a system?

The mole fraction of urea (MW = 60.0 g/mol) in a solution prepared by dissolving 16 g of urea in 39g of H2O is ________. YOU MUST SHOW YOUR WORK FOR THIS PROBLEM

A 210. Lb. person is required to take a medication at a dose of 5.00 mg per kg of body weight twice a day. How much medication would the person take in a 24-hour period? (Indicate the number in proper scientific notation with the appropriate number of significant figures.) YOU MUST SHOW YOUR WORK FOR THIS PROBLEM

Rationalize the following expression: 63{“version”:”1.1″,”math”:”63″}

The majority of phosphorous on earth is located