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The solubility of ammonium bromide in water at 20 degrees Celsius is 75.5g/100g water. Its solubility at 50 degrees Celsius is 99.2g/100g water. Calculate the mass of ammonium bromide that would not remain in solution if a solution made up of 29.0 g of ammonium bromide in 35.0 g of water at 50 degrees Celsius is cooled to 20 degrees Celsius.
Calculate the energy transferred as heat to raise the temp of 55g aluminium from 22.4 degrees C to 94.6 degrees C?
Water has seeped through the pore spaces in the glass cup. 4. The relative humidity of the air near the glass cup is approaching 0 percent. 5. The dew point temperature was not reached.
What is the density of hydrogen gas at 23.0^C and a pressure of 1640 psi?
give explanation why the boiling point of a 2-component mixture increase slowly throughout a simple distillation while
suppose .853L of H2 is collected at 15 degrees celcius and 782 mmHg. how much electricity in coulombs must have passed through the solution
Citric acid (H3C6H5O7) is a product of the fermentation of sucrose (C12H22O11) in air. C12H22O11(aq) + 3 O2(g) -> 2 H3C6H5O7(aq) + 3 H2O(l) Determine the mass of citric acid produced when 4.60 mol C12H22O11 is used.
What ions and/or molecules are present in relatively large proportions in a solution of a strong acid HNO3 (aq)
Discuss how plastics are used in everyday life and cutting edge technology and what the pitfalls are of plastics.
Calculate the amount of work done against an atmospheric pressure of 1.00 atm when 500.0 g of zinc dissolves in excess acid at 30.0°C. Zn(s) + 2H+(aq) → Zn2+(aq) + H2(g)
PI3Cl2 is a nonpolar molecule. Based on this information, determine the I-P-I bond angle, the Cl-P-Cl bond angle, and the I-P-Cl bond angle.
A 3.00-L flask contains nitrogen gas at 25°C and 1.00 atm pressure. What is the final pressure in the flask if an additional 2.00 g of N2 gas is added to the flask and the flask cooled to -55°C?
A helium-filled weather balloon has a volume of 714 L at 23 oC and 759 mmHg. It is released and rises to an altitude of 4.80 km, where the pressure is 495 mm Hg and the temperature is -9oC. what is the volume of the balloon at this altitude.
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