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DEPRECATED. DON'T USE THIS TAG.

1
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A mixture weighing $4.08\ \mathrm g$ of $\ce{BaO}$ ($M(\ce{Ba})$ = $138\ \mathrm{g\ mol^{-1}}$) and an unknown carbonate $\ce{XCO3}$ was heated strongly. The residue weighed $3.64\ \mathrm g$. This …
asked Nov 23 '13 by Tejas
1
vote
2answers
A partially dried clay mineral contains 8% water. The original sample contains nearly 12% water and 45% silica. The percentage of silica in the partially dried sample is nearly 50% 49% 55% 47% I k …
asked Nov 18 '13 by Tejas
3
votes
1answer
Find the mass of $\ce{NaBrO_3}$ required to prepare $150 \text{ml}$ of $0.75N$ solution based on the reaction $$\ce{BrO_3^- +6H^+ +6e^- \bond{->}Br^- +3H_2O}$$ My analysis: $150 \text{ml}$ soluti …
asked Nov 17 '13 by Tejas
3
votes
2answers
I have a formula for finding the final temperature in an irreversible adiabatic expansion. $$T_2=\left[\frac{C_v+(\frac{P_2}{P_1})}{C_p}\right]T_1$$ where $T_1$ is the initial temperature. $C_v$ and $ …
asked Sep 13 '14 by Tejas