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When a solution of chromium salt X is electrolysed, chromium metal is deposited on the cathode, according to the following equation.
Crn+(aq) + ne- → Cr(s)
When a current of 1.8A was passed for 40 minutes through a solution of salt X, it was found that 0.776 g of chromium had been deposited.
Calculate the value of n in the above equation. Show your working.
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Given that the vapor pressure of pure n-hexane and pure h-heptane at 25 °C are 151.4 mmHg and 45.62 mmHg respectively, calculate the total vapor pressure above a solution containing only n-hexane and n-heptane in which the mole fractio n of n-hexa..
Question- A fossil is found to have a 14C level of 87.0% compared to living organisms. How old is the fossil
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