Total mass of the sample =126.01 g
percent by mass of Sodium=27.40%
percent by mass of Hydrogen=1.198%
percent by mass of Carbon=14.300%
percent by mass of Oxygen=57.138%
Now the
Total mass of the sample of baking soda =Mass of sodium+Mass of hydrogen+mass of carbon+mass of oxygen.
Total mass of the sample of baking soda =34.48 g +1.51 g+18.02 + 72.00 g
Total mass of the sample of baking soda =126.01 g
percent by mass of each element =mass of element / Total mass of sample x 100
Sodium =34.48 g/126.01 g x 100=27.40%
Hydrogen =1.51 g/126.01 g x 100=1.198%
Carbon =18.02g/126.01 g x 100=14.300%
Oxygen =72.00g/126.01 g x 100=57.138%
See similar question here: brainly.com/question/18863998
Answer:
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Explanation:
Answer:
Moles of NO = 0.18
Moles of Br2 = 0.18
Explanation:
The given reaction with ICE table is:
![2NOBr(g)\rightarrow 2NO(g)+Br_{2}(g)](https://tex.z-dn.net/?f=2NOBr%28g%29%5Crightarrow%202NO%28g%29%2BBr_%7B2%7D%28g%29)
Initial 0.64 - -
Change -2x +2x +x
Equilb (0.64-2x) 2x 2x
At equilibrium:
[NOBr] = 0.64-2x
NO = Br2 = 2x
The equilibrium moles of NOBr = 0.46
![i.e.\ 0.64-2x = 0.46\\x = 0.09\ mols](https://tex.z-dn.net/?f=i.e.%5C%20%200.64-2x%20%3D%200.46%5C%5Cx%20%3D%200.09%5C%20mols)
Moles of NO = Moles of Br2 = 2x = 2(0.09) = 0.18 moles
The answer is (3) organic acids.
Organic acids are, simply put, acids. Therefore, they dissociate weakly into their conjugate base and H+ ions, making them electrolytes.
A cone of depression occurs in an aquifer when groundwater is pumped from a well. In an unconfined aquifer, this is an actual depression of the water levels. In confined aquifers, the cone of depression is a reduction in the pressure head surrounding the pumped well.