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What is a projectile? Describe the two forces involved in projectile motion and whether or not one has any influence on the other.
When 0.0190 mol gaseous NH3 and 0.0180 mol gaseous O2 are placed in a 1.00 L container at a certain temperature, the N2 concentration at equilibrium is 2.10×10-3 M. Calculate Keq for the reaction at this temperature.
How do you break HClO4 down showing it as an acid according to archenius definition
Calculate the pH of a 0.36 M solution of NaHSO4. If solid Na2CO3 is added to a solution of NaHSO4, what reaction occurs between the CO32- and HSO4. ions
in the preparation of the esters given in this experiment the reaction product was extracted with 5 sodium bicarbonate
How many liters of antifreeze ethylene glycol [CH2(OH)CH2(OH)] would you add to a car radiator containing 6.50 liters of water if the coldest winter temperature is -40.0C. Calculate the boiling point of this water-ethylene glycol mixture.
how much heat is absorbed when 63.7g h2o at 100 c and 101.3 kpa is converted to steam at 100 c.
What is the formula of a compound that crystallizes with copper ions occupying one-half of the tetrahedral holes in a FCC array of fluoride ions
Two substances, A and B, initially at different temperatures, come into contact and reach thermal equilibrium. The mass of substance A is 6.34g and its initial temperature is 21.0?C.
When another cell is composed of a Ag(aq) 1.0 molL-1 Ag(s) half-cell and a Zn2+ (aq 1.0 molL-1)/ An (s) half-cell, the cell emf is measured to be 1.56 V, and the Zn2+ (aq)/Zn(s) half-cell is the anode. What is the reduction potential of the Zn2+ (..
What is the pH of a solution resulting from the dissolution of 2.09 g of NH4Br in water to form 0.371 L of solution
A gaseous compound containing hydrogen and carbon is decomposed and found to contain 85.63% C and 14.37% H by mass. The mass of 258 mL of the gas, measured at STP, is 0.646 g. What is the molecular formula of the compound?
22.4 liters of a gas weighs 70g at S.T.P. Calculate the weight of the gas if it occupies a volume of 20 liters at 27C and 700mm Hg of pressure
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