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For the complete neutralization reactions between the following pairs of acid and bases, which pair is a soluble, strong base and a weak acid that react to form an insoluble salt?
Ca(OH)2, HNO3
KOH, H3PO4
NH3, HF
Ba(OH)2, H2CO3
Fe(OH)2, H2S
What is the coefficient of the permanganate ion when the following equation is balanced?
A compound is 40.0% C , 6.70% H, and 53.3% O by mass. Assume that we have a 100.-g sample of this compound. The molecular formula mass of this compound is 240 amu. What are the subscripts in the actual molecular formula?
Find the volume of hydrogen evolved when 3.25g of zinc granules react completely with excess hydrochloric acid solution (Zn=65)
The smallest atoms can themselves exhibit quantum mechanical behavior. Calculate the de Broglie wavelength (in pm) of a hydrogen atom traveling 475 m/s
A solution of ammonia and water contains 3.20×10^25 water molecules and 8.10×10^24 ammonia molecules. How many total hydrogen atoms are in this solution?
calculate the initial slopes of the plots of the compressibility factor z vs p at 300k and 600k.
Calculate the transformation rate for the austenite-to-pearlite transformation at 650 °C and at 600 °C. Show the relationship(s) you used to arrive at your answers.
two solutions, a 0.1% (m/v) albumin solution and a 2% (m/v) albumin solution, are seperated by a semipermeable membrane. (Albumin is a colloid)
At a certain temperature the vapor pressure of pure benzene and pure toluene are 380 torr and 130 torr, respectively. If 7.50 mol benzene is mixed with 6.64 mol toluene
Density and Identity, The mass of 5.00 mL carbon tetrachloride is 7.97g. What is the density of the carbon tetrachloride?
A canister is filled with 310 g of ice and 100 g. of liquid water, both at 0 C . The canister is placed in an oven until all the has boiled off and the canister is empty.
For a particular redox reaction Cr is oxidized to CrO42- and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution.
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