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How do you calculate the mass of KHC8H4O4 (molar mass=204.44 g/mol) that reacts with 15mL of NaOH solution
Use the three-step method described in the module to predict the actual precipitates which form (if such is the case) when the following solutions are mixed
what mass of Cu is electroplated by running 20.0A of current through
for a certain change the value of U is -2.37 kJ. During the change, the system absorbs 650 joules. how much work did the system do.
Acetylene gas (C2H2) is produced as a result of the following reavtion. CaC2(s) + 2H2O(l) yield C2H2(g) +Ca(OH)2(aq)
Calculate the binding energy of the 2s electron in iron and calculate the binding energy of the 2s electron in iron. Does the new energy agree better with experiment?
Maleic acid is a carbon-hydrogen-oxygen compound used in dyeing and finishing fabrics and as a preservative of oils and fats. In a combustion analysis, a 1.054- sample of maleic acid yields 1.599 of and 0.327 of.
Cesium-131 is a short lived radioisotope (t 1/2 = 9.7 days) used to treat prostate cancer. How much therapeutic strength does a cesium-131 source lose over 45.0 days?
How much heat (in kilojoules) is evolved or absorbed in the reaction of 2.45 of with enough carbon monoxide to produce iron metal?
The flask was then shaken until the solution was uniform. A 20.0-rm mL sample of this glucose solution was diluted to 0.500 rm L. How many grams of glucose are in 100. rm mL of the final solution?
a student pumped some helium gas into a balloon. when this balloon was connected to an open ended U-tube containing some oil (density=9.18 g cm-3 the oil was displaced 112 mm towards the atmosphere. what is the pressure of the helium inside this b..
The distribution constant for the metabolite between ligroin and an aqueous solution is 11.8. You extract 50.0 mL of an aqueous solution that is 0.0350 M in the metabolite with 25.0 mL ligroin. What is the concentration of the metabolite in the aq..
The density of liquid mercury is 13.6g/mL at 25 celsius. What is the density in g/cm3?
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