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A sample of benzene,C6H6, which contains a total of 5.50 mol of carbonCalculate the number of molecules present in each of the following samples.
A star is estimated to have a mass of 2x10 to 36 kg. Assuming it to be a sphere of average radius 7.0x 10 to 5 km, calculate the average density of the star in units of grams per cubic centimeter.
Which of the following statements correctly describe CH3COOH (acetic acid)? -There are 2 atoms of carbon in one molecule of acetic acid -The molar mass of acetic acid is 29.02 g/mol.
or each of the following cases, briefly explain whether the action causes net reaction from left to right, right to left, or no net reaction. Also, state whether the equilibrium partial pressure of NH3 increases, decreases or stays the same. (a) i..
Identify each of the following statements as describing a chlorination reaction or a bromination reaction - The carbon-halogen bond dissociation energy is higher
The molar solubility of lead(II) iodate in water is 4.0 ? 10-5 mol/L. Calculate Ksp for lead(II) iodate
Suppose we have a flask with a movable piston in which pressure is kept constant at 1.00atm. If an 8.00gram sample of solid ammonium nitrate is introduced into the flask what is the volume of the flask in liters at 298K when the ammonium nitrate h..
Calculate the dye concentration. (3) 5.00 mL of 0.00500 M ferric nitrate is added to 5.00 mL of nitric acid and 10.0 mL of 0.00250 M thiocyanate solution. Calculate the initial Fe3+ concentration before reaction.
find the density of a rock is found to have a mass of 33.8 g. when placed in a graduated cylinder containing 40.0 ml of
What is the limiting reactant when equal masses of iron(III) chloride and potassium phosphate react in solution?
Which entries below should have the highest standard molar entropy? Place them in order of increasing standard molar entropy. ex: a>b>c>d.
Magnesium has three isotopes, Mg-24, Mg-25, and Mg-26. The percentage abundance of each in order is 78.70%, 10.13%, 11.17%.
What are some ways to induce recrystallization (Name 3), if your solute refuses to recrystallize after performing the required 7 steps?
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