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Which one of the following salts, when dissolved in water, produces the solution with the lowest pH?
AlBr3
MgBr2
NaBr
KBr
A gas occupies a volume of 480 mL at 127 degrees celsius and 148 mmHg. What mathematical expresssion will yield the correct volume at 177 degrees celsius and 400mgHg?
A sample of carbon dioxide gas occupies 617 mL at 0.812 atm and 11?C. What will the pressure be at a volume of 717 mL and a temperature of 16?C?Answer in units of atm
determine the minimum length of a surface crack that will lead to fracture. Assume a value of 0.96 for Y.
The voltage meter reads +0.63 volts. Write out the reaction equation, then calculate the standard reduction potential of Fresnium.
Carbonyl fluoride, , is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride
How many different kinds of polypeptides, each composed of 12 amino acids, could be synthesized using the 20 common amino acids?
what is the vapor pressure(in mm Hg)of a solution made by dissolving 18.3g of NaCl in 500.0g of H2O at 70 degree celcius. The vapor pressure of pure water at 70 degree celcius is 233.7 mm Hg.
Calculate the volume of 1 M solution of NaOH required to neutralize 20mL of 0.1 M acetic acid solution (final pH should ;be 7.0). (pKa of Acetic acid = 4.76).
What is the hardness of this mineral? What is the specific gravity of this mineral? show your calculations. Using all these properties, identify this mineral?
The acid forms two ions, HC2O4- and C2O42-, by the sequential loss of H+ ins. Draw lewis structures for the three species and comment on the relative lengths and strengths of their carbon-oxygen bonds.
Calculate the molar solubility of lead thiocyanate in .900M KSCN ,when the Pb(SCN)2 has a Ksp value =2.00X10^-5, Calculate the molar solubility of MX (Ksp rate =1.27X10^-36) in pure water.
How many moles of NaHCO3 and CH3COONa are necessary to produce 425 mL of CO2?
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