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Assuming 100% dissociation, calculate the freezing point and boiling point of 3.27 m AgNO3(aq). Constants may be found here.
Using standard enthalpies of formation, calculate the standard enthalpies of the following reaction: 4HCl(g)+O2(g) -------> 2Cl2(g) + 2H2O(g)
A dancehall contains 173 men and 238 women. A certain "promenade" calls for the formation of groups, with each group consisting of one man with two women.
what maximum volume of a buffer with a ph=4.58 can be prepared using only these two resources?
A mass of 1.50 g H2O is sealed in an evacuated 3.0-L flask and heated to 55 °C. What mass of liquid water remains in the flask when equilibrium is established? The equilibrium vapor pressure of water at 55 °C is 118 mm Hg.
61.0 mL of a solution(1.60 M) is diluted to a volume of 208 mL. A portion of that solution(104-mL) is diluted using 121 mL of H 2 O. determine the final concentration?
A 0.6815g sample of alum is heated to drive off the waters of hydration, and the resulting KAL(SO4)2 weighs 0.3709 g. Determine the value of x AND the complete formula of alum.
The absorbance at 595 nm was 0.78 and, according to a standard curve, corresponds to 0.015 mg of protein on the x-axis. What is the protein concentration of the original solution?
Are interested in isolatin menthol from a min leaf. You have pureed 12g of mint leaf and completed steam distillation using 35 mL of water.
A sample of the exit air is drawn in to a chamber containing a mirror and cooled slowly, keeping the gauge pressure at 10mm Hg. A mist is observed to form on the mirror at a temperature 40C. Calculate mass of water removed from ..
A sample of nitrogen gas had a volume of 500. mL, a pressure in its closed container of 740.0 torr and a temperature of 25.0°C.
liquid NCl3 in a 2.50L closed container is heated until it decomposes completely to gaseous products. the resulting mixture exerts a pressure of 745mm Hg at 95 degrees celsius
how many moles of oxygen gas will be produced by the decomposition of 111.5 g of lead(II)oxide.
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