Question: How many grams of NaOH are contained within 0 785 moles NaOH?

How many grams in 1 mole of NaOH?

The molar mass of the compound NaOH is 40 g/mol.

How many grams of NaOH are present in 250cm3 of its 0.2 M solution?

The Answer is 8 grams of NaOH. Molarity = Mass of solute × 1000/(Molar mass of solute × Volume of solution in mL).

How many grams of NaOH MW 40.0 are there in 350.0 mL of a 0.225 M NaOH solution?

FREE Expert Solution

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We’re being asked to calculate the mass of NaOH in 350.0 mL of a 0.225 M NaOH solution. Recall that molarity is the ratio of the moles of solute and the volume of solution (in liters). The mass of NaOH in solution is 3.15 g NaOH.

How many grams of NaOH are present in 400 mL of 3.0 M solution?

I’m assuming you have a 0.5M sodium hydroxide solution in concentration. Four hundred millimeters equal to 0.4 leter. Based on equation molarity equals to moles over liter, after calculation, you will have 0.2 moles of sodium hydroxide. With a molecular weight of 40 grams per moles, the mass in grams should be 8 grams.

How many grams does NaOH have?

1 mole of sodium hydroxide has a mass of 40.00 g⋅mol−1 .

How do you calculate moles of NaOH?

Step 1: Calculate the amount of sodium hydroxide in moles

  1. Amount of solute in mol = concentration in mol/dm 3 × volume in dm 3
  2. Amount of sodium hydroxide = 0.100 × 0.0250.
  3. = 0.00250 mol.
  4. The balanced equation is: NaOH(aq) + HCl(aq) → NaCl(aq) + H 2O(l)
  5. So the mole ratio NaOH:HCl is 1:1.

How do you make a 0.2 molar NaOH solution?

Use sodium hydroxide’s molar mass to determine how many grams would contain this many moles. If you add 0.64 g of solid sodium hydroxide to the stock solution you’ll get a 0.2-M solution of (approximately) the same volume.

How many grams of NaOH will be required to prepare 500g solution containing 10 ww2 NaOH?

In 500 g of solution of 10% w/w NaOH present. So, 25 g of NaOH will be required to prepare 500 g of 5% w/w NaOH solution.

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What is the mass of NaOH present in 250 ml of a 0.1 m NaOH solution?

The molecular weight of NaOH is 40 g/mole. To make 250 mL of a 0.1 M solution you need 4g/4 (250 mL is 1/4 of a liter) mol or 1 g of NaOH.

How many grams of NaOH are there in 500 mL of a .250 M NaOH solution?

The Answer is 8 grams of NaOH.

How many grams of NaOH are there in 500 mL of a 2.0 M solution?

To make 500 mL of 2.00 M NaOH solution, you need to make sure that every litre of the solution contains 2.00 mol of NaOH . So, 1 L of 2.00 M NaOH solution contains 2.00×(23.0 + 16.0 + 1.0) g NaOH . And 500 mL of 2M NaOH solution contains 80.02g NaOH=40.0 g of NaOH .

How many grams of NaOH are there in 500 mL of a 0.125 M NaOH solution?

The mass of NaOH needed to prepare 500 mL of 0.125 M NaOH is 2.5 g.

How many grams of NaOH will be required to prepare 500 ml of 0.2 M solution?

So to prepare 1000ml. of 1N NaOH weneed=40g To prepare, 500 ml. of 0.2N NaOH we need=40 x 0.2 x 500/1000=4 g. So to prepare 500 ml.

What mass of NaOH is in 250 ml of a 3.0 m NaOH solution?

Explanation: It’s a 3.0 M solution so 1 litre of solution contains 3 moles of NaOH. 250 ml of solution therefore contains 0.25 x 3 = 0.75 moles of NaOH. The molar mass of NaOH is 39.9971 g/mol, so 250 ml of this solution contains 0.75 x 39.9971 = 29.99 g, or if you round it up 30.0 g.

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How many liters of 0.2 m NaOH solution would contain 0.4 mole of NaOH <UNK>?

5 litres of solution are required.