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It is possible to draw a valid Lewis structure that follows the octet rule for all of the following except one. Which one cannot be drawn without violating the octet rule?A) NF3B) BeH2C) SO2D) CF4E) SO32?
What is the synthesis for the following compunds from simple organic precursors? Important Using original syntheses, not from published works.
changes the freezing temperature of the camphor by -2.10°C. Given camphors freezing-point depression constant of -37.7°C/m, calculate the molar mass of estradiol.
The following three solutions are mixed: 90.0mL of 0.110M Na2SO4 , 45.0mL of 0.250M ZnCl2 , and 100.0mL of 0.20M Ba(CN)2. What ionic compounds will precipitate out of solution? Express as a chemical formula.
A gaseous mixture of O2 and N2 contains 30.8 nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 805 mmHg ?
Suppose the current flowing from a battery is used to electroplate an object with silver. Calculate the mass (in grams) of silver the would be deposited by a battery that delivers 1.25 A/hr of charge.
calculate the total heat (in J) needed to convert 20.0g ice at -8.00 c to liquid water at 0.600c? melting point at 1 atm
When 24 mL of a 175 mL stock solution containing 1.6 M BaF2 is diluted to 70 mL, what is the concentration of Ba2+ in the new solution?
A 5.00 % m/m glucose solution has d = 1.02 g/mL. What is the mass of glucose in 362 mL of the solution.
Find the correct mass balance equation for an aqueous solution of MnCl2 that ionizes to Mn2 , Cl-, MnCl , and MnOH.
The [OH-] of a solution can be determined from the pOH using the equation: [OH-] = 10 ^ -pOH where [OH-] = hydroxide ion concentration. If [OH-] = 6.0*10^-3 M then pOH=?
The half-life for the reaction at 550C is 81.3 seconds. How long does it take for 89% of phosphine sample to decompose?
What is the absolute humidity of the cooled air? and What is the minimum mass flow rate of water into the swamp cooler?
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