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Calculate the osmotic pressure of a 20% sucrose solution given that the molecular weight of sucrose is 342g. (Gas constant= .0821L ATM/Mole °Kelvin and room temperature =25 degrees Celsius)
Bonding in some solids does not fit neatly into one of the four categories. Explain why the bonding in Na2CO3 is not purely ionic.
What is the molarity of that forms when 20.0 of zinc completely reacts with according to the following reaction? Assume a final volume of 285 .
Nitrosyl bromide, NOBr, is 34 percent dissociated at 25 deg. C and the total pressure is 0.25 atm.
the iron oxide reacts to form water vapor and Fe(s) but aluminum oxide remains unreacted. If the residue following heating weighs 1.6446g determine the wight percent of iron oxide in the original mixture.
if 5.00 grams of NaHCO3 decomposes, what is the mass of the carbon dioxide produced?
If you have a vapor compression cycle using HCF-134a refrigerant instead, what is the minimum pressure would you have to achieve in the compressor in order to reject heat into the surroundings assuming that you need the refrigerant to be a minimum
Deal gases can be defined in terms of microscopic assumptions, assumptions about the values of macroscopic measurements or an equation of state
What would be the pH of 87 mL of the buffer to which 8.5 mL of 0.11 M hydrochloric acid has been added?
Calculate the mass of KClO3 decomposed. The vapor pressure of water at 28 °C is 28.3 mmHg. (Hint: The gases collected are a mixture of oxygen and water vapor
How many mL of a 2.0 M solution of NaOH would bve needed in order to have 0.500 mol of NaOH? (Molar mass of NaOH is 40.0 g/mol)
What is the volume of a 2.3M NaOH solution required to titrate 23.5 mL of a 1.00 M H2SO4 solution? First write a balanced chemical equation
Chemists have discovered nearly 300 different anthocyanins. Finish drawing a resonance contributor in Box 3 that shows positive charge on one of the other oxygens in this anthocyanin. It is not necessary to draw any electron flow arrows in your re..
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