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# Need help calculating dose from molar solution for infusion watch

1. How would you calculate this? would the answer be the same whether we need 500ml or 1000ml of the infusion?
Q: calculate how much potassium chloride is needded to prepare 500ml infusion that contains 60mmol of potassium chloride (molecular weight of potassium chloride is 74.55g)
2. (Original post by joneswill93)
How would you calculate this? would the answer be the same whether we need 500ml or 1000ml of the infusion?
Q: calculate how much potassium chloride is needded to prepare 500ml infusion that contains 60mmol of potassium chloride (molecular weight of potassium chloride is 74.55g)
So you know that your infusion needs to contain 60 mmol KCl in 500 mL. So you work out how much 1 mmol weighs, then multiply that mass up for 60 mmol.

If they ask for a 60 mmol infusion, the answer would be the same for both 500 mL and 1000 mL.

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