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Problem- Determine the molar mass of chloroform gas if a sample weighing 0.389 g is collected in a flask with a volume of 102 cm3 at 97 C. The pressure of the chloroform is .958 atm
Anyone can tell me how to solve it step by step so that I will be able to understand what is going on?
How many liters of water vapor can be formed by the reaction of 275.0 liters of oxygen gas and 250.0 grams of pentane? Which reactant is limiting? How many grams of the excess reactant are left over?
make a model of propane. if you substitute one bromine atom for one hydrogen atom how many isomers are possible? show
A 30.0 mL sample of 0.30M HClO (aq) is titrated with 0.20 M NaOH (aq). Ka of HClO is 3.5*10^-8. a. What volume of base is needed to reach the equlivance point. b. Determine the pH of the equlivance point.
What is the concentration of Cu2+ in the following cell at 25 degrees C if the cell voltage is 0.955V?
Problem- Would NaCl or CsCl cause a larger precipitation of AgCl when 0.1 g is dissolved in a saturated solution
Identify the number of electron groups around a molecule with a tetrahedral shape. a)4 b)3 c)5 d)2 e)1
Which solution behaves more ideally, a 5.0% by weight NaOH (aq) solution (b.p. = 102 ºC) or a 50. % NaOH (aq) solution (b.p. = 140. ºC) Support your answer with calculations (hint: what are the theoretical boiling points for these solutions).
At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3. H2(g)+I2(g) 2HI(g) Kc=53.3 At this temperature, 0.800 mol of H2 and 0.800 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present ..
In a proton nmr spectrum a methylene peak appeared at delta = 2.1 ppm when a simple 60 MHz spectrometer was used. At what frequency would this peak appear if the scale were instead given in Hertz
A 0.160-mole quantity of NiCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Ni2 ions at equilibrium. Assume the formation constant* of Ni(NH3)62 is 5.5 × 108.
Problem- Physiological saline, NaCl solution used in intravenous injections has a concentration of 0.90 % NaCl (mass/mass). How many grams of NaCl are needed to prepare 500. mL of this solution (assume the density of the saline solution is 1.0 g/m..
The chemical equation of adding water to the product of heated CuSO4. 5H2O and its reaction classification.
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