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thank u
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Can you help with 46.? The answer is 1 only.No problem
No problem
isotopes can have more neutrons. Wouldn't that mean they'd have bigger radii?Can you help with 46.? The answer is 1 only.
radii depends on number of electron not on number of neutron so this property remains the sameisotopes can have more neutrons. Wouldn't that mean they'd have bigger radii?
I'm not that good in chemistry, but from my understanding it cant be a,b, or d because these three properties are also present in NaCl and MgO and the question says that CsCl has a different structure than these two, so the only distinct property that CsCl has is the radii ratio.Ans is c but why..
Let me know if this helped.I'm not that good in chemistry, but from my understanding it cant be a,b, or d because these three properties are also present in NaCl and MgO and the question says that CsCl has a different structure than these two, so the only distinct property that CsCl has is the radii ratio.
Yea thanks manLet me know if this helped.
First write the balanced equation.
2H2S + 3O2 ------> 2H2o + 2SO2
(Note:For AS you're not required to know this equation by heart but whenever such a question appears, there are either hints in it about the products or the products are stated explicitly. Nonetheless, you're expected to know the oxidation/combustion products of H2 and S2. )
Moles of H2S = Mass/Molar Mass = 8.65/((32.1 + 2) = 173/682
Moles of O2 = (3 x (173/682))/2 (since mole ratio H2S:O2 = 2:3 from the equation) = 519/1364
Volume = moles x 24 = (519/1364) x 24 = 9.13 dm^3
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