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A 330 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 626 mmHg. Calculate the moles of Ar present.
petit discovered the empirical rule that the specific heat times the atomic weight of many solid elements is a constant: Using this rule, calculate the specific heat of copper and platinum.
Compute the pressure (in atmospheres) Using the van der Waals equation, exerted by water(H2O) of 23.93 grams at 36.11 degree celsius in a 1.00 Litre container.
A solution of 0.312 M KOH is used to titrate 15.0 mL of a H2SO4 solution. write the balanced chemical equation. what is the molarity of the H2SO4 solution if 28.2 ml of the KOH solution is required?
along with the weight of sodium acetate (4.01g) and the volume of acetic acid used (10mL) to prepare the buffer, the expected pH of it was 5.43. What is the expected pH of buffer plus added HCl?
How many days would be required for a dose of Cu-64 to decay to 1.0% of its original concentration?
The concentration of oxygen, O2, dissolved in a sample of seawater is 6.22 ppm by mass (concentration 1 ppm - 1 part per million - means
Gaseous hydrogen has a density of 0.0899g/L at 0 degrees Celsius. How many liters would you need if you wanted 1.0078 g of hydrogen?
when 50 mL of water containing .5 mol HCL at 22.5 degrees C is mixed with 50.0 mL of water at 25 degrees C in a calorimiter, the temperature of the solution increases to 26 degrees C. How much heat was released by this reaction?
How many moles of CF4 can be produced when 5.00 mol C react with 12.00 mol F2.
In the reaction 2-phenylacetic acid + ethanol in a H2SO4 solution yields Ethyl-2-phenylacetate, (a) which group in the acyl compound is being substituted and (b) what is the substituting group?
Calculate the percent water: mass of water lost / mass of hydrated salt x 100%. E. Write the empirical formula for hydrated alum, based on your experiment.
Determine E° for the reduction half-reaction Ce4+(aq) + e- → Ce3+(aq), given that the cell voltage for the following voltaic cell is E°cell = 1.887 V:
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