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Molar mass of KCl = 74.55g/mol.
ie, if you dissolve 74.55g KCl in 1litre (1000 ml) of water, it will be 1M KCl solution.
If you want to make 3M KCl solution,
Dissolve 3 ×74.55 = 223.65g KCl in 1litre (1000 ml) of water.
If you want to make different molar solutions of KCl, just calculate as per below given equation.
Weight of KCl to be weighed =
Molarity of the solution needed × Molecular weight of KCl (ie, 74.55) × Volume of solution needed in ml / 1000.
To prepare 3M KCl in 1 litre, it can be calculated as follows,
3 mol × 74.55 g/mol × 1000 ml / 1000 ml = 223.65g
By
Praveen P Thalichalam, Kasaragod (Dist), Kerala.
What else can I help you with?
What should be the pH of 3M KCl solution?
I believe it should be 7.0. Here's an example of 3M KCl made for sale with the specs, showing a pH of 7.0
Why pH probes always kept immersed in 3M Kcl solution?
I just got done talking with a vendor for pH probes and he explained that the KCl solution helps facilitate the measurement of the hydrogen ions with the electrode. It will actually seep out in small quantities from the tip which is a membrane.
What are the Steps how to make 3M KCl?
Since you know the molecular mass of KCl is 74.55, that can be set up as a fraction: 74.55 grams/ 1 mole. You want a 3 molar solution and (for simplicity sake) you want 1 Liter. This can be expressed as the fraction: 3 moles / 1 Liter If you set these equations next to each other (find the product--multiply them), you can cancel out the units that exist on both the top and bottom, which in this case are the moles: 74.55 g / 1 mole * 3 moles/1 Liter = 74.55 g/1 * 3/1 Liter Since the denominator is 1, this is really just 74.55 g * 3/Liter -or- 223.65 grams/Liter ("223.65 grams per Liter").
To the nearest cubic centimeter how much soil is there in a 3m X 2m X 2m hole?
The volume of the hole is 3m x 2m x 2m = 12 cubic meters. To convert to cubic centimeters, you would multiply by 1,000,000 (1 cubic meter = 1,000,000 cubic centimeters). So, the volume of the hole in cubic centimeters is 12,000,000 cubic centimeters.
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Estimates of the cost to repair the damage from the Christchurch earthquake in 2011 ranged from $20-40 billion New Zealand dollars. The costs were largely related to infrastructure repairs, rebuilding damaged buildings, and supporting affected communities.
What should be the pH of 3M KCl solution?
I believe it should be 7.0. Here's an example of 3M KCl made for sale with the specs, showing a pH of 7.0
What is the pH of 3M KCl solution?
pH = -log(Concentration)pH = -log(3)pH = -(0.477121255)pH = -0.477121255
3m to how much MM?
3m is 3000mm.
How much mm. 3m?
3m = 300cm = 3000mm
Why pH probes always kept immersed in 3M Kcl solution?
I just got done talking with a vendor for pH probes and he explained that the KCl solution helps facilitate the measurement of the hydrogen ions with the electrode. It will actually seep out in small quantities from the tip which is a membrane.
If a tank has length 3m and width 3m and height 4m how much water it can hold?
36 cu m
If you got 3m 3m 3m 3m how many meters do you have?
12meters
What is bigger 200cm or 3m?
3m
How much does a race car cost?
i think $3m or $4m
What is 9m plus 9m plus 3m plus 3m equals?
9m + 9m + 3m + 3m = 24m
-3m plus 8-7?
-3m + 8 - 7 = -3m + 1
What is the volume of a room in cm3 that measures 3m x 3m x 2m?
3m*3m*2m=300*300*200=18,000,000cm3
