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CH4+2O2--->CO2+2H20
Using this equation, how many moles of water are produced when .875 moles of methane burn?
During a titration, 18.55 mL of H2SOa(aq) was required to neutralize 28.65 mL of 0.150M LiOH(aq). What is the concentration of the sulfuric acid (H2SO4) solution?
How many atoms of neon occupy a volume of 14.3 L at STP.
The mass of an average blueberry is 0.76g and the mass of an automobile is kg. Find the number of automobiles whose total mass is the same as 1.0mol blueberries.
At a certain temperature, K = 9.1 10-4 for the following reaction. FeSCN2+(aq) Fe3+(aq) + SCN -(aq)
A 53.6 gram sample of an unknown substance contains 11.5 grams of carbon. What is the percent by mass of carbon in the compound?
if 0.55 g of a gas dissolves in 1.0 l of water at 20.0 kPa of pressure, how much will dissolve at 110.0 kPa of pressure?
Calculate the mass of sugar (C12H22O11) that must be dissolved in 700 g of water to prepare 20% sugar solution
If 93 of heat are added to a pure gold coin with a mass of 11 , what is its temperature change? Specific heat capacity of gold is 0.128?
When setting temperature scan program of Diffrential Scanning Chromatography,
What is the molar mass of this substance, express your answer in g/mol and determine the moloar concentraitions Cr 2 O 7 ^2 and of K + ?
The equilibrium concentration of I2 is 0.05M. What is the equilibrium constant Kc for the reaction at this temperture? Express answer in K
At 25 degrees celcius a sample of NH3 effuses at a rate of .050 mole per minute. Under the same conditions, which gas effuses at approximately one-half that rate?
How many grams of zinc metal will react completely with 8.2 liters of 3.5 M HCl? Zn (s) + 2 HCl (aq) ZnCl2 (aq) + H2 (g)
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