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You have 27.5 L of a 65.6% by volume (% v/v),water-based dye solution. Calculate the volume of pure dye and water that were used to prepare the solution. You may assume that volumes are additive.
Calcium crystallizes as a face-centered unit cell. Calcium has an atomic radius of 197 pm and the density is 1.55 g/cm3. What is the edge length of the unit cell
determine the amount of heat (in kJ) given off when 1.42 * 10^4 g of NO2 is produced according to the following equation : 2 No(g) + o2(g) --> 2NO2(g) H = -114.6kj
Carbon disulfide and chlorine will react according to the equation below. Which of these is the limiting reactant if 8.4 g of CS2 and 8.4 g of Cl2 are mixed
A first order decomposition reaction is observed to have the following rate constants at the indicated temperatures. using an Arrhenious plot, find the activation energy
Write out and label the oxidation half-reaction and the reduction half-reaction. b)Combine your balanced half-reactions to show the balanced total reaction. c)What is the oxidizing agent. What is the reducing agent.
How many grams of magnesium chloride are needed to react completely with 66.0 mL of 0.189 M NaOH solution
why was Mendeleev's decision to leave blank spaces on his table sometimes was referred to as his most significant contribution to the periodic table?
If 5.00 mL of HCl require 4.78 mL of 0.9581 M NaOH to just consume the HCl, what is the concentration of the HCl
Determine what is the density of the oxygen gas in the full bottle If A cylindrical gas lecture bottle has internal dimensions of 18.0 cm in diameter and a height of 49.0 cm and weighs 1.75 kg when empty.
How much heat energy, in kilojoules, is required to convert 68.0 grams of ice at -18.0 degrees C to water at 25.0 degrees C
a biological cell is immersed in a 60. mm solution of nacl at37degc. the cells membrane is permeable only to naions.
What mass of sucrose should be combined with 488 of water to make a solution with an osmotic pressure of 8.25 at 280.
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