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At 340 K, Kp = 69 for the reaction H2(g) + I2(g)-> 2HI(g). 50.0 g of HI is injected into an evacuated 5.00-L rigid cylinder at 340 K. What is the total pressure inside the cylinder when the system comes to equilibrium?
A sample of iron was dissolved iin hydrochloric acid. The liberated hydrogen was collected by displacement of water. The hydrogen occupied 262 mL at 26 c.
0431 moles of sucrose (a sugar with a MW of 342 g/mol) are dissolved in 400.0 g of water. The solution density is 1.013 g/mL and you can assume that the density of pure water is 1.00 g/mL. What is the molality of this solution
How many grams of aspirin were lost in the washing process you used to purify your product, assuming you used 50mL of water for washing? The solubility of aspirin in water is 0.33g per 100mL at room temperature.
determine the molar ratio of sodium borohydride to 9-fluorenone that you used in the experiment. why is it necessary to
Describe how adding a solution of koh to the original sulfide precipitate results in the seperation of SN4+ ion from the other group II cation
What mass of ethanol, CH3CH2OH, should be dissolved in 450. g of water to obtain a freezing point of 4.5°C?
A technician was accidentally exposed to potassium-42 while doing some brain scans for possible tumors. the error was not discovered until 48h later when the activity of the potassium-42 sample was 2.1?ci .if potassium-42 has a half-life of 12 h
Caffeine crystals always contain at least one molecule of water per caffeine molecule. Draw chemical structures to explain why a water molecule might be essential to producing a stable crystal of caffeine.
Consider a solution containing 4.95 mM of an analyte, X, and 1.79 mM of a standard, S. Upon chromatographic separation of the solution peak areas for X and S are 3569 and 10981, respectively. Determine the response factor for X relative to S.
The molar enthalpy of vaporization of boron tribromide is 30.5 kJ/mol, and it's normal boiling point is 91degrees C. What is the vapor pressure of BBr3 at 34 degrees C.
Reactant: water and 2.51 g of SbCl3 Product: 1.906 g of a solid of antimony, oxygen and chlorine, and 0.802 g of a single gas that is 97.20% chlorine and 2.75% hydrogen What is the empirical formula of the gas and the solid
A method of preparing a very pure alkane is to react the corresponding alkyl magnesium halid (grignard reagent) with water and collect the alkane product.
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