Question

Potassium is a mineral your body needs to work normally. It helps muscles to move, cells to get the nutrients they need, and nerves to send their signals. It is especially important for cells in your heart. It also helps keep your blood pressure from getting too high. Potassium Chloride (KCl) solution is used for the treatment of severe Hypokalemia, low levels of potassium in your blood (arrhythmia, marked muscular weakness, rhabdomyolysis, or serum potassium level ≤ 2.5 mmol/liter). You need to prepare a stock solution of KCl with a 1.42 M concentration to keep it in the emergency room. You have an analytical balance in your facility and endless glassware. How will you do it? Describe it in detail. Make a label with the correct significant figures.

          Potassium is a mineral your body needs to work normally. It
helps muscles to move, cells to get the nutrients they need, and
nerves to send their signals. It is especially important for cells
in your heart. It also helps keep your blood pressure from getting
too high. Potassium Chloride (KCl) solution is used for the
treatment of severe Hypokalemia, low levels of potassium in your
blood (arrhythmia, marked muscular weakness, rhabdomyolysis, or
serum potassium level ≤ 2.5 mmol/liter).
You need to prepare a stock solution of KCl with a 1.42 M
concentration to keep it in the emergency room. You have an
analytical balance in your facility and endless glassware. How will
you do it? Describe it in detail. Make a label with the
correct significant figures.

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Added by Jaime W.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Adedamola Opalade

03/15/2022

Step 1

To determine the volume of stock solution needed, we need to know the desired concentration and the amount of potassium chloride (KCl) required. The desired concentration is given as 1.42 M. Let's assume we need 100 mL of stock solution. Show more…

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Potassium is a mineral your body needs to work normally. It helps muscles to move, cells to get the nutrients they need, and nerves to send their signals. It is especially important for cells in your heart. It also helps keep your blood pressure from getting too high. Potassium Chloride (KCl) solution is used for the treatment of severe Hypokalemia, low levels of potassium in your blood (arrhythmia, marked muscular weakness, rhabdomyolysis, or serum potassium level ≤ 2.5 mmol/liter). You need to prepare a stock solution of KCl with a 1.42 M concentration to keep it in the emergency room. You have an analytical balance in your facility and endless glassware. How will you do it? Describe it in detail. Make a label with the correct significant figures.

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Transcript

00:01 In this question we are told that potassium is a mineral.

00:04 Your body needs to work normally.

00:06 It helps muscle to move cells to get nutrient and then to send the signals.

00:13 It is especially important for cells in your heart.

00:17 It also keeps your blood pressure from getting too high.

00:21 Potassium chloride solution is used for the treatment of severe hypokulinear.

00:27 Low level of potassium in your blood, heremia mark and mark, muscular weakness abdominalis or serum, potassium level 2 .5 miller per liter.

00:39 What is this information? the question is you need to prepare a stock solution of kcl with a 1 .42 model concentration.

00:48 So the concentration of kcl is 1 .42 model.

00:56 And you want to keep this in the imaging serum.

01:01 You have an analytical balance in your facility and endless glassware.

01:06 How will you do it? so the way to do it is to know, okay, you want to prepare the stock solution, that means you have one 1 .42 mole of kcl in 1000ml.

01:23 Right.

01:26 So potassium chloride, the mother mass of that is what, so it's not a 4 .6.

01:45 So more than the amount of potassium chloride is 74 .6.

01:49 So molecular weight is 704 .6 grams from more...

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