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1a) Calculate how many degrees of un-saturation the compound with the molecular formula C9H7O3N2S Cl4Br contains.
1b) Draw a plausible structural formula for this compound.
a saturated solution of which of the following substances in water would be the bestnbspconductor of electricity?1.
What is the specific activity in (Ci g-1) of the nuclide Br (mass 90, atomic number35), whose half life is 1.6 seconds
Consider ATR sampling using a trapezoidal ZnSe crystal. In the mid-infrared region, refractive indices for ZnSe and water are approximately 2.4 and 1.3, respectively. What is the penetration depth (?m) for IR radiation of 1600 cm-1 if it strikes t..
A sample of oxygen gas has a volume of 131 L at 25°C and a pressure of 0.982 atm. Calculate the volume of this oxygen sample at STP.
Which of the following mixtures will be a buffer when dissolved in 1 liter of water?
When X-rays with ? = 1.937 Å are used, the second-order Bragg reflection from a set of parallel planes in a(n) cesium crystal is observed at an angle
Determine the pressure of a gas using the ideal gas law - Calculate the pressure inside the vessel after all the dry ice has been converted to CO2 gas.
How many grams of KCN will be needed to make 817 mL of pH = 11.836 solution when added to distilled water (Ka HCN= 6.2x10-10)
Draw the lewis dot structure and predict the molecular and electron-domain geometries of the following ions. a) NO2- b) CO3 2- c)ClO2-
A bottle of wine contains 12.5% ethanol by volume. The density of ethanol is 0.789 g/cm3. Calculate concentration of ethanol in wine in terms of mass percent and molality.
Propane (C3H8) is widely used in liquid form as a fuel for barbecue grills and camp stoves. For 76.6 g of propane, determine the following, in 4 significant figures.
calculate the length in km of a row containing 1 mole of hydrogen atoms laid side to side if diameter of a hydrogen
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