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Light of wavelength 540 nm is incidenct on a slit of width 0.150, and a diffraction pattern is produced on a screen that is 2.00 from the slit. What is the width of the central bright fringe?
could 131 g of xe gas in a vessel of 1.00 dm3 exert a pressure of 20.0 atm at 25 c if it behaved as a perfect gas? if
Not more than 5 H-bond donors (OH or NH) Not more than 10 H-bond acceptors (O or N) MW less than 500 g/mol What is the rational for the Rule of Five?
An unknown compound X, is thought to have a carboxyl group with a pka of 2.0 and another ionizable group with a pka between 5 and 8. When 75 ml of 0.1 M NaOH was added to 100 ml of a 0.1 m solution of X at pH 2.0, the pH increased to 6.72.
What is a meniscus? Why do some liquids develop a meniscus? How do we read the liquid level in a volumetric measuring device
Phosphorus pentachloride is used in the industrial preparation of organic phosphorus compounds. Equation 1 shows its preparation from PCl3 and Cl2. (1) PCl3(l) + Cl2(g) PCl5(s)
What is the pH of the solution created by combining 2.90 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
Calculate the mass of ethylene glycol (C2H6O2) that must be added to 1.00 kg of ethanol (C2H5OH) to reduce its vapor pressure by 11.9 torr at 35°C. The vapor pressure of pure ethanol at 35°C is 1.00 multiplied by 102 torr
Consider the following electrochemical cell at 298 K. One compartment contains a 1.00-M solution of silver nitrate. The other compartment contains a saturated solution of silver iodide
If 30.0 grams of sulfuric acide react with 25.0 g of aluminum hydroxide, identify the limiting reactant.
How many milliliters of 0.150M sulfuric acid are required to react with 8.20g of sodium bicarbonate.
air contains nitrogen oxygen argon and trace gases. if the partial pressure of nitrogen is 587 mm hg oxygen is 158 mm
How many grams of Mg2SO4 is required to make up 100mL of 20g/L Mg2SO4 solution in water?
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