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JulijaS [17]
3 years ago
5

How are diffusion and osmosis different?

Chemistry
1 answer:
elena55 [62]3 years ago
8 0
Osmosis is about the movement of water molecules and diffusion is about the movement of substances
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What is the solubility of m(oh)2 in a 0.202 m solution of m(no3)2? ksp = 9.05×10−18?
saveliy_v [14]
<span>M(NO3)2 ==> [M2+] + 2 [NO3-] 0.202 M ==> 0.202 M M(OH)2 ==> [M2+] + 2[OH-] 5.05*10^-18 ===> s + [2s]^2 5.05*10^-18 ===> 0.202 + [2s]^2 5.05*10^-18 = 0.202 * 4s^2 4s^2 = 25*10^-18 s^2 = 6.25*10^-18 s = 2.5*10^-9 So, the solubility is 2.5*10^-9</span>
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3 years ago
What’s the fastest way to balance chemical equations
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Hey there!

The best way to balance chemical equations is to first start by balancing polyatomic ions such as OH and SO₄.

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What volume of a 3.0 M stock solution of H2SO4 is needed to prepare 2.8 L of a 1.6 M H2SO4 solution?
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Use M1V1 = M2V2 to solve
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Out of the options, the best indicator is a color change since it is the only one that can't really be blamed on a physical change.  you will eventually notice that during qualitative labs and some quantitative labs, usually the thing that you are looking for is either color change or the production of a precipitate to indicate the presence of a chemical reaction  

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