The molarity remain unchanged, only the amount of NaOH is changed.
The answer is 1,2 mol.
depends of the mass volume and concentration of ethanoic acid for example 100ml, and a concentration of 1 mole/l moles = concentration*volume moles = 1*100/1000 (remeber volume is in litres) therefore there is 0.1 moles mass = moles*gfm gfm = 2*12 + 2*16 + 4 = 44 hence mass = 4.4grams
No. The heat of reaction for 50mL of each will be multiplied by 2 for 100mL of each since heat of reaction is really on a per mole product basis, and there will be twice as many moles of both HCl and NaOH in 100mL as in 50mL.
The change in energy represented by a thermochemical equation is directly proportional to the number of moles in substances undergoing a change.
5mM = 0.005 moles 100 mL = 0.1 Liters Molarity = moles of solute/Liters of solution 0.005 M EDTA = X moles/0.1 Liters = 0.0005 moles EDTA =_____________ Now, look up the molecular formula for EDTA and find how many grams needed to add to your 100 mL.
The answer is 1,2 mol.
2.5g/100ml = moles/1L First convert the ml into L. 2.5g/.100L = moles/1L Cross multiply. 25 moles/ 1L
The number of moles of solute will not change. Too, the molarity of the solution decreases.
depends of the mass volume and concentration of ethanoic acid for example 100ml, and a concentration of 1 mole/l moles = concentration*volume moles = 1*100/1000 (remeber volume is in litres) therefore there is 0.1 moles mass = moles*gfm gfm = 2*12 + 2*16 + 4 = 44 hence mass = 4.4grams
No. The heat of reaction for 50mL of each will be multiplied by 2 for 100mL of each since heat of reaction is really on a per mole product basis, and there will be twice as many moles of both HCl and NaOH in 100mL as in 50mL.
Equation to find concentration"Titration"Concentration = Number of moles x 1000 ÷ Volume (cm3)"Molarity"Concentration [Molar] = Number of moles ÷ Volume (cm3)
1 gram NaCl (1 mole NaCl/58.44 grams) = 0.0171 moles NaCl Molarity = moles of solute/volume ( liters) of solution 0.171 M = 0.0171 moles NaCl/volume 0.1 Liters, or more to our point; 100 milliliters
I would need to know what kind of gas you're talking about. Once you know that, you can use the periodic table to do a mass-mole conversion to get the number of moles. The number moles won't change as temperature changes, but its volume would change, as per the gas laws.
The change in energy represented by a thermochemical equation is directly proportional to the number of moles in substances undergoing a change.
multiply the number of moles by Avogadroa number
There is no direction in number of moles, so it is scalar.
The number of moles 9,92.10e-5.