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A:how many valance electrons does calcium fluorine have? B: what is its empirical formula? c: what is its lewis structure?
What is the molar solubility of magnesium hydroxide: in water, in pH 12.00 buffer, and in 0.50M magnesium nitrate
A metal bulb is filled with 10.2 g of CHCl3 and 0.322 g of CH4 (two gases). What is the total pressure in the bulb if the temperature is 345 C and the volume is 50.0 mL.
Write a net ionic equation for the reaction that occurs when cobalt(II) carbonate (s) and excess hydrochloric acid (aq) are combined.
What hybridization would you expect for the indicated (bold) atom in each of the following molecules?
What is the mass percent of ethylene glycol (C2H6O2) in a solution of ethylene glycol in water that has a freezing point of -15C? (Kf for water is 1.858C/m.)
The measured density of a certain gaseous amine at 0 C as a function of pressure is: P(atm) 0.200 0.500 0.800
Poisons such as sodium azide and sodium cyanide inactivate hemoglobin by irreversibly binding to the heme group of the molecule. These poisons also inactivate the electron transport chain.
How many moles of steam are produced at 2.00 atm and 202.0 degrees celcius by the complete combustion of 12.50 L of methane gas?
A particular element, M has a heat capacity of 0.36 j x g-1 x k-1. It forms an oxide that contains 2.90 g of M per gram of oxygen. What is the molar masss of M
Calculate the pH of a buffer solution made by adding 10.0 g of anhydrous sodium acetate (NaC2H3O2) to 100mL of 0.100 M acetic acid (HC2H3O2).
An unknown alkene having the formula C6H12 yields (CH3)2CHCHO and CH3CHO on ozonolysis. What is the structure of this alkene
r2 deaker and c3 phosphate are titrating 100 ml of monoprotic acid (HAc) with a .5M NaOH solution. the equivalence point was reached after the addition of 15 ml. what is the concentration of the acid in molarity
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