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A sample of .^(14)CO_(2) was to be mixed with ordinary CO_(2) for a biological tracer experiment. In order that 10 "cm"^(3)of diluted gas should have 10^(4) dis/min,what activity ("in"mu Ci) of radioactive carbon is needed to prepare 60L of diluted gas at 1 atm and 273 K? [1 Ci=3.7 xx10^(10) "dps"] |
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Answer» `270mu CI` |
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