Chemistry, 26.11.2019 19:31 PrisonKing9334
Atemperaturas elevadas, el clorato de sodio sólido (naclo3) se descompone para formar cloruro de sodio, nacl y o2 (g). una muestra de 0,8765 g de clorato de sodio impuro se calentó hasta que cesé la producción de oxígeno. el o2 (g) se recogió sobre agua y ocupó un volúmen de 57,2 ml a 23,0 ºc y 734 torr. calcule el porcentaje en masa de naclo3 en la muestra original. supongase que ninguna de las impurezas produce oxígeno al calentarse. la presión de vapor de agua a 23,0 ºc es 21,07 torr.-
Answers: 1
Chemistry, 21.06.2019 13:00
Asolution at 25 degrees celsius is 1.0 × 10–5 m h3o+. what is the concentration of oh– in this solution?
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Chemistry, 21.06.2019 14:40
Water ionizes by the equation h2o(l)⇌h+(aq)+oh−(aq) the extent of the reaction is small in pure water and dilute aqueous solutions. this reaction creates the following relationship between [h+] and [oh−]: kw=[h+][oh−] keep in mind that, like all equilibrium constants, the value of kw changes with temperature.
Answers: 1
Chemistry, 22.06.2019 05:30
Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease.correct answer for apex - a, its nonpolar end dissolves the grease.
Answers: 1
Chemistry, 22.06.2019 06:00
Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?
Answers: 3
Atemperaturas elevadas, el clorato de sodio sólido (naclo3) se descompone para formar cloruro de sod...
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