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A mixture of the compounds sodium bromide and calcium oxide contains 23.4 g of calcium oxide and is 69.1 % by mass calcium oxide. The compound sodium bromide is 77.7 % by mass bromine. Calculate the mass (g) of bromine in the mixture.
determine the ph of 0.25 m hno2 nitrous acid solution it is given that ka4.5 x 10-4?determine the molecular formula of
Rank the substituents shown below in order of Cahn-Ingold-Prelog priorities (1 = highest priority group, 4 = lowest priority group).
Suppose a system of three particles, represented by circles, have the possibility of occupying energy states with 0, 10, or 20 . Collectively, the particles must have 30 of total energy. One way the three particles can distribute themselves is sho..
Aluminum readily displaces hydrogen in sulfuric acid according the following balanced reaction: 2Al(s) + 3H2SO4(aq) = Al2(SO4)3(aq) + 3H2(g). How many moles of Al and how many moles
Which of the following statements regarding the possible effects of radiation on a cell is incorrect. Radiation can pass through a cell with no damage.
When Aqueous solutions of Pb(NO3)2 and Na2SO4 are mixed, a precipitate of PbSO4 is formed. Calculate the mass of PbSO4 formed when 655 mL of 0.150 M Pb(NO3)2 and 525 mL of 0.0751 M Na2SO4 are mixed.
Calculate the vapor pressure of the solver over the solution at 25 degrees C. The vapor pressire of pure water at 25 degrees C is 23.8 mm Hg
using the delta hfdegree sdegree and delta gfdegree data from appendix d in your textbook calculate delta h degree
What is the mass of one mole of the gas when the density of a gas is 0.0151 g/mL at 150 degrees Celsius and 1.50 atmospheres?
You wish to prepare 0.13 M HNO3 from a stock solution of nitric acid that is 13.1 M. How many milliliters of the stock solution do you require to make up 1.00 L of 0.13 M HNO3?
a certain monoprotic weak acid with ka 6.8 times 10-7 can be used in various industrial processes but is no longer
A chemical reaction takes place in a container of cross-sectional area 100 cm2 As a result of . the reaction, a piston is pushed out through 11 cm against an external pressure of 689 torr. What is the value for w for this reaction?
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