WebbThe tube on the left contains only copper sulfate dissolved in solution. The tube on the right is the result of adding some potassium bromide solution. Given that the Cu(H2O)6+2 ion is blue and that the CuBr4-2 ion is green, answer the questions below. a. What happened to the concentration of each of the ions when the KBr was added? b. WebbA transparent glass syringe was filled with the gaseous mixture of N 2 O 4 and NO 2 and its tip sealed. The following equilibria was established. N 2 O 4 (g) 2NO 2 (g) Pale yellow dark brown (i) Write an expression for the equilibrium constant, Kp, for this equilibrium. (1) (ii) 1 mole of N 2 O 4 was allowed to reach equilibrium at 400K.
Science Experiments on the Osmosis of a Potato Sciencing
WebbThe most common example is making tea. While preparing tea, a filter or a sieve is used to separate tea leaves from the water. Through the sieve pores, only water will pass. The liquid which has obtained after filtration is called the filtrate; in this case, water is the filtrate. The filter can be a paper, cloth, cotton-wool, asbestos, slag ...Webb1 dec. 2011 · There is no single chemical composition that characterizes all glass. Typical glass contains formers, fluxes, and stabilizers. Formers make up the largest percentage …sig hansen first wife
0620 y20 sp 2 - Cambridge Assessment International Education
Webb21 maj 2012 · 4 *P40134A0428* Answer ALL questions. 1 A student was asked to find the mass of salt dissolved in 100 cm3 of sea water. She was given the following instructions. Step A Weigh an empty evaporating basin Step B Transfer 50 cm3 of sea water into the basin Step C Heat the sea water in the basin until all the water has evaporated Step D … Webb12 okt. 2024 · Lavender glass is a rather accidental color that has caused a lot of commotion in the glass bottle collector and sea glass world. Finding that perfect piece of pale purple glass on the beach rightfully elicits at least widening eyes, if not a verbal squeal of delight as well—that’s the sea glass world’s commotion over lavender.WebbAfter the whirlpool, give the kettle a few minutes to settle, so the sediment can collect in one place before transferring to the fermenter. Don't try to transfer everything from the kettle. Minimize the amount of hops and hot break you transfer. You can filter at this stage; splashing a bit will help with aeration.the preserve in naples