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A flask holds 100ml. When empty, is mass is 125.54g. When filled with a solution of potassium bromide, the mass of the flask and solution is 425.54 g. What is the density of the solution?
If a saturated solution of silver nitrate at 20 degrees celsius contains 216g AgNO3 per 100g of water, what mass of water could contain 725g of this solute at the same temperature.
What is the thickness of the foil. the question asks for the thickness of foil in millimeters and also tells that the density is 2.699 g/cm^3.
A mixture consisting of 7.0g CO and 10.0g SO2, two atmospheric pollutants, has a pressure of 0.33 atm when placed in a sealed container. What is the partial pressure of the CO?
Experimentally the ionization energy of hydrogen is 1312.2 kJ / mol. What would be the wavelength (nm) of a photon with enough energy to ionize one atom of hydrogen
Although coals is a complex mixture of substances, its elemntal composition can be approximated by the formula C135H96O9NS. Using this formula calculate the mass of carbon in 1.00 x 10^9 kg of coal
Consider the experiment where Cu is added to a solution acidic nitrate ion (look for a half reaction with nitrate). In the balanced equation, what is the coefficient in front of Cu
A solution of ammonia and water contains 4.70×10 water molecules and 5.50×10 ammonia molecules. How many total hydrogen atoms are in this solution?
Most top-loading balances used in this experiment measure a mass only to the nearest mg(+/- 0.001 g). This significantly affects the calculation of R in the experiment
A gas expands and does P-V work on the surroundings equal to 325 J. At the same time, it absorbs 161 J of heat from the surroundings. Calculate the change in energy of the gas.
Given that the specific heat capacities of ice and steam are 2.06 j/g degrees C and 2.03J/g degrees C, respectively, calculate the total quantity of heat evolved when 10.0 g of steam at 200 degrees C is condensed, cooled, ad frozen to ice at -50 d..
write a plausible equation to interpret, at the atomic level, what you observed in the reaction of lysol toilet bowl cleaner with .1M AgNo3
The solubility of ammonium chloride at 70C is 60g of solute per 100g of water. What solution would be saturated at 70C
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