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if 100 mL of 0.800 M Na2SO4 is added to 200 mL of 1.20 M NaCl, what is the concentration of Na ions in the final solution?
A sample of argon gas occupies 125 L at 22C and .975 atm. What volume will it occupy at 60C and .825 atm?
A student calibrates his/her calorimeter. S/he performs part 1 as instructed. The data are: 99.4 g water at 36.0°C are added to 98.0 g water in the calorimeter at 16.0°C.
Use the PhET to complete the sentences describing how electronegativity is related to bond dipole experienced by the molecule.
What are the major differences between "theories", "hypotheses" and "laws". What is an example that would explain them.
The solubility of O2 (g) in water is 4.43mg O2/100 g H2O (20ºC and 1 atm). What is the molarity (M) of this saturated solution?
Fundamentals of acids and bases - Water self ionizes to a small extent creating equal concentrations of hydronium and hydroxide ions. Find the molar concentration of these ions in water at 25 o C?
What is the sequence of the peptide? Use the one-letter abbreviations for the amino acids, and do not use dashes.
Determine what volume of HI, will be produced at the same temperature and pressure, If all the H2 and I2 are consumed?
One brand of laundry bleach is an aqueous solution containing 4.00% sodium hypochlorite by mass.What is the molarity of this solution.
How many milliliters of boiling water are required to dissolve 25g of phthalic acid? If the solution were cooled to 14oC, how many grams of phthalic acid would you recrystallize out?
80.0 grams of diiodine pentoxide reacts with 28.0 grams of carbon monoxide. How many grams of I2 could be produced?
Determine the concentration of the sulphuric acid (H2SO4) solution If It takes 58 mL of 0.124 M potassium hydroxide(KOH) to neutralize 41.5 mL of sulphuric acid( H2SO4) solution.? Express your answers in units of moles/liter
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