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The alcohol content of hard liquor is normally given in terms of the "proof," which is defined as twice the percentage by volume of ethanol (C2H5OH) present. Calculate the number of grams of alcohol present in 1.00 L of 81-proof gin. The density of ethanol is 0.798 g/mL.
The normal respiratory rate for a human being is 25.0 breaths per minute. The average volume of air for each breath is 505 cm3 at 20.0 degrees Celsius and 9.95 times ten to the fourth Pa.
assume that the wet limestone process requires 1 metric ton of caco3 to remove 90 of the sulfer from 4 metric tons of
Write one overall equation, using an alkali metal ion and a nitrate ion as spectator ions if needed, for the following net ionic equation: H+(aq) + OH-(aq) ? H2O(l)
Which of these square planar complex ions can have cis-trans isomers. A. [Pt(NH3)2Cl2] B. [Pt(NH3)4]2+ C. [Pt(NH3)Cl3]- D. [Ni(NH3)3Cl]+ E. [Ni(NH3)4]2+
most community water supplies contain 0.5 ppm chlorine added for purification. what mass of chlorine must be added to
How Many moles of NaOH are needed to neutralize the acid? D) Calculate the volume of NaOH solution required to react completely with the acid.
The density of acetic acid vapor at the narmal boiling point, 118.5 degrees C, is given as 3.15 g/L (normal boiling point is the boiling point at P =1 atm). a) calculate the fraction of the vapor that is the monomer and the fraction that is the dim..
What percentage (by mass) of trichloroethane is left as a liquid when equilibrium is established
How many moles of HCL must be added to 1.50L of 1.70M KOH to obtain a pH of 2.00?
at a particular temperature and a0 2.00 x 10-2 concentration versus time data were collected for this reaction and a
In the first step of the synthesis of PABA, why was it necessary to add sodium acetate to have reaction of p-toluidine with acetic anhydride?
a solution containing 3.50 of sodium carbonate is mixed with one containing 5.00 of silver nitrate. how many grams of
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