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Calculate the change in entropy when 50g of 80C water is poured into 100g of 10C water. Assume the container is insulated so that no heat is lost to the surroundings.
0.2 grams of HCl is dissolved in 0.8 grams water. the density of the solution formed 1.10 g/mL. What is the molarity of the solution
The value of Ka for nitrous acid (HNO2) at 25C is 4.5*10^-4. What is the value of deltaG when [H+]= 5.9*10^-2 M, [NO2^-]= 6.1*10^-4 M, and [HNO2]= 0.19 M
When 25g of magnesium reacts with 75g of hydrochloric acid it produces 95g of magnesium chloride and hydrogen gas.
the specific heat of liquid bromine is 0.226 jg-k. how much heat j is required to raise the temperature of 10.0 ml of
For the reaction: CO(g) + 2H2(g) = CH3OH(g) Kp = 2.26 X 10^4 at 25C Calculate Delta Grxn for the following conditions: P(CH3OH) = 1.0 atm P(CO) = P(H2) = 0.010atm
at 340 k kp 69 for the reaction h2g i2g -gt 2hig. 50.0 g of hi is injected into an evacuated 5.00-l rigid cylinder at
(a) In the acetylene molecule (C2H2), which of the following are present? A) 2 VSEPR electron pairs around each carbon atom B) 3 ? and 1 ? bonds C) 2 ? bonds
Give structures and names of all benzene derivatives that theoretically can have the indicated number of derivatives.
Sodium carbonate was used to precipitate silver from a solution. 6.00 grams of silver carbonate were recovered from 1.500L of solution.
What is the possible chemical explanation for this? I understand that a reaction using a thiamine catalyst at room temperature for 48 hours may lead to lower yield due to catalyst decomposition, but I'd like to know a more technical explanation.
A solution that contains 55.0 g of ascorbic acid (Vitamin C) in 250. g of water freezes at -2.34°C. Calculate the molar mass (in units of g/mol) of the solute. Kf of water is 1.86°C/m.
The SI unit of time is the second, which is defined as 9,192,631,770 cycles of radiation associated with a certain emission process in the cesium atom. Calculate the wavelength of this radiation
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