One mole of any substance weighs about the same as the molecular mass of that substance. Hence, the number of moles of sodium hydroxide contained in 160 g of it is 4 moles.
How many moles are in 4 grams of NaOH?
What is the mass of 4 moles of NaCl?
The molar mass of sodium chloride is 58.4 g/mol. This means that one mole of NaCl will weigh 58.4. 4 moles of NaCl will weigh 4 times as much. We can…
What is the mass of 3 moles of NaOH?
A 3.0 M solution of NaOH has 3.0 moles of NaOH per liter of solution. There are 0.25 L of solution (250mL⋅1L1000mL) , so there are 0.25L⋅3.0mol/L=0.75mol of NaOH. The molar mass of NaOH is 40.0 g/mol, so there are 0.75mol⋅40.0g/mol=30g of NaOH, 30. g with the right number of significant figures.
How many moles are in NaOH?
First, the molar mass of NaOH is 39.997 g/mol. Divide the mass by the molar mass and you’ll have the equation: 60 g / 39.997 g/mol. The grams cancel and you are left with 1.50 moles of NaOH.
What is the molar mass of NaOH?
1 mole of sodium hydroxide has a mass of 40.00 g⋅mol−1 .
How many grams is 4 moles of sodium chloride?
Approx. 250⋅g of salt.
How many moles are in 90 g of NaOH?
There are 2.25 moles of NaOH in 90g of NaOH.
What is the mass of 4 mol of HCl?
Therefore, in the presence of an excess of Cl2, 2.00 mol H2 will react completely to give 4.00 mol HCl. = 4.00 mol x 36.46 g mol–1 = 146 g.
What is the mass of 2 mole of NaOH?
Answer: The molar mass of the compound NaOH is 40 g/mol.
How many grams of NaOH is there in 3 moles of NaOH?
The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles NaOH, or 39.99711 grams. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between moles NaOH and gram.
How do you calculate moles of NaOH?
Step 1: Calculate the amount of sodium hydroxide in moles
- Amount of solute in mol = concentration in mol/dm 3 × volume in dm 3
- Amount of sodium hydroxide = 0.100 × 0.0250.
- = 0.00250 mol.
- The balanced equation is: NaOH(aq) + HCl(aq) → NaCl(aq) + H 2O(l)
- So the mole ratio NaOH:HCl is 1:1.
What is one mole of NaOH?
One mole of NaOH has a molar mass of 40.0 g, so 40.0 g of NaOH dissolved in 1 kg of water results in a one-molal NaOH solution. If 20.0 g of NaOH, which is 0.500 mol of NaOH, is dissolved in exactly 1 kg of water, the concentration of the solution is 0.500 m NaOH.
How do you calculate the number of moles of NaOH?
Calculate the number of moles of NaOH used in reaction 3 by multiplying the volume of NaOH times the molarity (1.000 mol/L).