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Equilibrium is established between Br-Br (l) and Br-Br (g) at 25 C. A 250.0mL sample of the vapor weighs 0.486g. Explain what is the vapor pressure of bromine 15 25.0 C, in mmHg.
The rate constant for a certain reaction is k = 2.60×10-3 s-1 . If the initial reactant concentration was 0.200M , what will the concentration be after 14.0 minutes?
The molecular weight and formula of a hydrocarbon are to be determined through the use of the freezing point depression method. The hydrocarbon is known to be 86 percent carbon and 14 percent hydrogen by mass.
maltose is a sugar with formulac12h22o11. a 250.ml aqeuoussolution of maltose at 25.00c has an osmotic pressure of5.61
Calculate w (in kJ) when 390 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 426 K.
How can 1-bromopropane be used to prepare each of the following
A 0.2150g sample is dissolved and treated with excess AgNO3. The precipitate is filtered, washed, dried as well as weighed. Product mass (AgCl) is 0.4587g. Explain what is the weight % of Cl in the original sample
The solubility iof sodium chloride in water is 35.9 g NaCl/100 g of water at 25 degrees celsius. Calculate the mass percent and molality of NaCl in a saturated solution.
At a certain temperature, the equilibrium constant for the reaction 2HI(g)39. At a certain temperature, the equilibrium constant for the reaction 2HI(g) H2(g) + I2(g) is 0.49.
A buffer solution is prepared by adding 15.00 g of sodium acetate ( NaC2H3O2) and 12.50 g of acetic acid to enough water to make 500 mL of solution.
16.2g iron(III) chloride reacts with 3.33g NH2OH in acid to produced N2O gas. a) Write a balanced, net ionic equation.
In another experiment it was determined that for each mole of hydrocarbon, 7 moles of oxygen gas are consumed and 5 moles of CO2 gas and 3 moles of H2O liquid are produced. Find ?H per mole of this hydrocarbon (in kJ) at 298 K
Some recent media attention about oyster culture and restoration in the Chesapeake Bay and other coastal areas intrigued some environmentally minded citizens in Chincoteague Island,
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