Chemistry, 31.10.2019 01:31 pacoburden02
A2.183 g sample of a solid mixture containing only potassium carbonate ( mm=138.2058 g/mol ) and potassium bicarbonate ( mm=100.1154 g/mol ) is dissolved in distilled water. a volume of 33.26 ml of a 0.788 m hcl standard solution is required to titrate the mixture to a bromocresol green end point. calculate the weight percent of potassium carbonate and potassium bicarbonate in the mixture. k2co3 : wt% khco3 : wt%
Answers: 2
Chemistry, 22.06.2019 18:30
Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2β’2h2o sncl2β’4h2o sncl2β’6h2o
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Chemistry, 22.06.2019 19:00
A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.
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Chemistry, 23.06.2019 19:00
X-rays are used instead of visible light because x-rays have shorter than visible light, allowing them to produce images of much greater detail. a) energies b) frequencies c) speeds d) wavelengths
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A2.183 g sample of a solid mixture containing only potassium carbonate ( mm=138.2058 g/mol ) and pot...
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