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a flask containing 500ml of 3m hci solution requires 1445 ml of 100m naoh for titration how many moles of hci are
a solution is prepared by mixing 500 grams of compound z molar mass is 1500 gmol in 1000 ml of water the density of the
in a solution containing the following dissolved species which would contribute positively to alkalinity explainspecies
if 30 ml of a certain liquid has an initial temperature of 50 degrees and is heated to 100 degrees what is the new
how much heat energy in kilojoules is required to convert 680 grams of ice at -180 degrees c to water at 250 degrees
you are given a 760 solution of sulfuric acid h2so4 what is the molality of this solution the density of the h2so4
when 150g of water at a temperature of 225c is mixed with 655g of water of an unknown temperature the final temperature
the rate at which an australian tree cricket chirps is 184 per minute at 35 degrees c but only 50 chirps per minute at
1904 g of ammonia gas was mixed with 3110 g of hydrogen chloride gas in an enclosed container calculatea which of the
a bottle of concentrated aqueous sulfuric acid is labeled 980 wtwt h2so4 and has a concentration of 180 f h2so4a what
methanol ch3oh a colorless volatile liquid was formerly known as wood alcohol it boils at 650degc and has a heat of
a 03120-g sample of impure caoh2 is dissolved in enough water to make 3690 ml of solution 2000 ml of the resulting
calculate the ph of the following solution a mixture of equal volumes of 035 m glycine and 055 m
use the following data to calculate the combined heat of hydration for the ions in sodium acetate nac2h3o2 hlattice
when 260 ml of 0645 m h2so4 is added to 260 ml of 129 m koh in a coffee-cup calorimeter at 2350degc the temperature
how many a kilometers b meters c centimeters ad d millimeters are there in 0800 miles calcuted to the correct numbers
a add 006g of naoh mw40gmol to 1 l of acid solution to 001 m of carboxylic acid at ph3 what is final ph no volume
a water sample is found to contain 23ppm iodinei if you drank 1399ml of this water how many moles of iodinei would you
once the chromatographic column has been prepared why is it important to allow the level of the liquid in the column to
the half-life of a reaction is the time it takes for the reactant concentration to decrease by half for example after
the ionization energy for sodium is 496 kjmol the electron affinity for chlorine is -349 kjmol use these values and
a solution containing 130 sodium hydroxide by mass has a density of 1131 gml sodium hydroxide has a density of 2130 gml
1 for your most exact titration record the followinga volume of naoh solution in the burette at the start mlb volume of
if 0420 mol of a nonvolatile nonelectrolyte are dissolved in 320 mol of water what is the vapor pressure prm h2o of the
calculate the expectation values of x and x2 for a particle in the state n2 in a square-well