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HF Neutralization

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LabRat_Syd:
I need to neutralize approx. 9.5 liters of 2M HF. I have already tried using 200grams of calcium carbonate but after 7 days, still no luck! Ideally, we would like the process to be the least toxic method possible. Thanks!

mjc123:
How many moles in 9.5L of 2M HF? How many moles of CaCO3 would that react with? How many moles is 200g CaCO3?

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