## How much water would I need to add to 500 mL of a 2.4 M KCl solution to make a 1.0 M solution?

5) How much water would I need to add to 500 mL of a 2.4 M KCl solution to make a 1.0 M solution? Need to add **1200 – 500 = 700 mL**.

## What is the final volume of 0.10 m Naoh that can be prepared from 250 mL of 0.30 M Naoh?

**750 mL**.

## How would you make 1 liter of a 2 M KCl solution?

Step 2 To make a 2M aqueous solution of KCl **dissolve 149.102 grams of KCl** in some distilled deionized water. Then add more water to the flask until it totals 1 liter.

## What is the molarity of a solution containing 5.0 moles of KCl in 2.0 l of solution?

**2.5M**.

## How many grams of potassium carbonate are needed to make 2.00 102 mL 200 mL of a 2.5 M solution?

**70 g** of potassium carbonate.

## What volume of water should be added to 2.6 g of KCl to make a 4m solution?

**8.7ml**Acid/Base: The Water Constant and pH Instructions: Determine if each solution is acidic basic or neutral.

## What volume of 2.5% m/v KOH can be prepared from 125 mL of a 5.0% KOH solution?

The short answer is that the volume of the target solution will be equal to **250 mL** .

## What is the pH of 0.10 m NaOH?

**13**. Therefore the pH of 0.1 M NaOH solution is 13.

## What is the molar mass of NaOH?

39.997 g/mol

## How many grams of KCl would you need to make a 1 Litre solution which is 0.1 m?

**74.0 grams**in one liter of water.

## How do you make 1m solution of KCl?

For a 1 M solution of KCl **dissolve 74.55 g of KCl in 900 mL of H _{2}O**. Make up the volume to 1 L with H

_{2}O and autoclave for 20 min on liquid cycle.

## How many moles of KCl are in 0.556 l of a 2.3 M KCl solution?

So in the first step were given 2.3 uh malaria T k c l. And we’re told that we have uh 0.556 leaders. So we multiply and we get a value of **1.3 moles**.

## What is the molarity of a 2.0 L solution containing 5.0 moles of table salt?

Concentration = **2.5⋅mol⋅L−1** .

## What is the molarity m of a solution that contains 5.0 moles of solute in 2000 mL of solution?

The molarity of the solution is **5.1 mol/L** .

## What is the molarity of a solution that contains 17g of NH3?

The moles of NH_{3} is: We know that the volume of the solution is 0.50 L. We can now calculate for molarity: The molarity of the NH_{3} solution is **2 M**.

## How do you make 2M K2CO3?

(iii) 2M K2CO3 (Potassium Carbonate): Dissolve 276.41 g K2CO3 in 1000 ml **distilled water**. (iv) 0.25M Na2CO3 (Sodium Carbonate): Dissolve 26.5 g Na2CO3 in 1000 ml distilled water. (v) 1M CH3COOH (Acetic Acid 99.5% assay ρ = 1.05g/cm3): Dissolve 57.192 ml CH3COOH and make up the volume to 1000 ml with distilled water.

## How many grams of potassium carbonate do I need?

The mass of potassium carbonate needed is **69.1 grams**.

## How many grams of potassium carbonate are needed to make 200 ml of a 2.5 M solution hint use molarity formula but you are solving for solute not molarity?

Hence **69 grams** of potassium carbonate $ {K_2}C{O_3} $ are needed to make $ 200{text{ }}mL $ of a $ 2.5{text{ }}M $ solution.

## What is the molar mass of Koh?

56.1056 g/mol

## How many milliliters of a 25% m/v NaOH solution would contain 75 g of NaOH?

**300 milliliters**of a $25%$ (m/v) NaOH solution would contain 75 g of NaOH.

## What is the name of Koh?

Potassium hydroxide/IUPAC ID

Potassium hydroxide solution (KOH aqueous) is a colourless inorganic liquid that acts as a strong base (alkali). KOH solution is also known as caustic potash or potash lye and has many different applications.

## What is the pH of 0.025 m NaOH?

**12.40**.

## What is the pH of a 0.00001 M NaOH solution?

**pH+pOH=14**⇒pH=14-3=11.

## What is the pH of 0.05 m NaOH solution?

The pH is **about 12.7**.

## What is the mass of sodium hydroxide present in 500mL of 1M NaOH solution?

“What mass of solid NaOH is needed to make 500mL of 0.1M NaOH solution?” To make one mole NaOH solution dissolve **40 grams NaOH** in 500mL of H2O.

## What is molar mass of Sulphur?

32.065 u

## What is the molarity of a solution containing 10 g of NaOH in 500 ml of solution?

**5 mol L**−1.

## What is the pH of 0.1 M KCl solution?

pH of KCl aqueous solution is **7** because in KCl both cation and anion are spectator ion which are not hydrolysed .

## What is the conductivity of 0.01 M KCl?

The specific conductance of a 0.01 M solution of KCl is **0.0014 ohm^-1 cm^-1 at 25^∘C** .

## How many liters of nacl solution do you need if you want 2.5 m nacl and you use 25.0 g of nacl?

A 2.5 M solution is 2.5 moles per liter (Molarity is just the number of moles per liter). Therefore 0.5 L would contain 1.25 mol. Hence you would need 1.25 × 58.44 g = **73 g**. Personally I prefer the first approach!

## What is 1M solution?

A molar solution is defined as an **aqueous solution that contains 1 mole (gram-molecular weight) of a compound dissolved in 1 liter of a solution**. In other words the solution has a concentration of 1 mol/L or a molarity of 1 (1M).

## How do you prepare standard KCl solution?

a) Place 2-3 g of AR potassium chloride (KCl) in a 50 ml beaker and dry in **an oven for 3-5 hours** at 105°C then cool to room temperature in a desiccator. b) Weigh 0.746 g of KCl into another 50 ml beaker. c) Dissolve the KCl in the beaker with good quality de-ionised water e.g. ‘Option water’.

## How do you calculate KCl mEq?

Step 3: 1 mEq KCl = **1/1000 x 74.5 g** = 0.0745 g = 74.5 mg Step 4: 1 mEq KCl = 74.5 mg 1.5 g KCl = 1500 mg How many mEq in 1500 mg?

## How many liters of a 0.5 M sodium hydroxide solution would contain 2 moles of solute?

**4 liters**of a 0.5M sodium hydroxide solution would contain two moles of solute.

## Molarity Dilution Problems Solution Stoichiometry Grams Moles Liters Volume Calculations Chemistry

## How to Calculate Mass Needed to Make a Solution

## Preparing a KCL solution Nils & Brent

## What volume of 0 244 M KCl solution is required to react exactly with 50 0 mL of 0 210 M PBNO32 solu