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To do this, you need to know the molecular weight of the element you're dealing with, by adding up the atomic weights of the elements involved (found on any Periodic Table). The molecular weight is the mass in grams of the compound in one mole - this will provide you with a conversion factor. So take the measurement in grams and divide it by the molecular weight to convert to moles. Really what you're doing is multiplying the number by 1 mole, and dividing it by the equivalent of one mole, the molecular weight. That's the thought process behind unit analysis and how you get your "units to cancel".
In this case, the answer is about 2 grams NaOH.
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∙ 14y ago
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∙ 13y agoThe molar mass for NaOH is 40.00g.
Sodium (Na) is 22.99g, Oxygen (O) is 16.00g, and Hydrogen (H) is 1.01g.
Therefore if you have 80.00g of NaOH, there are two moles.
80.00g/40.00g = 2.
Wiki User
∙ 15y agon=m/M
m(NaOH2)= 400mg=400x10^-3g
M(NaOH2)=22.99+16.00+2x1.008
Wiki User
∙ 13y agoNaOH is 40 molecular weight, so 4g means there is 0.1 moles present.
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∙ 10y agoMoles = weight (in g) / molecular weight = 40 / 40 = 1 mole.
So 40 g of sodium hydroxide = 1 mole.
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∙ 7y ago4,0g of sodium hydroxide is equivalent to 0,1 moles.
Wiki User
∙ 14y ago2 g NaOH means 0.05 moles
Wiki User
∙ 15y ago2.0
Wiki User
∙ 11y ago5 mols
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How many moles in 30.0 g of NaOH?
0.75 moles in 30.0g of NaOH.
How many moles of NaOH are in 8 g of NaOH?
8 grams NaOH (1 mole NaOH/39.998 grams) = 0.2 moles NaOH
How many moles are in 15 mL of 2.9 M NaOH?
Molarity = moles of solute/liters of solution ( 15ml = 0.015 liters ) 2.9 M NaOH = moles NaOH/0.015 liters = 0.0435 moles of NaOH
How many moles of NaOH needed to prepare 300 mL of a 0.2 m solution of NaOH?
You need 2,4 g NaOH (0,06 moles).
How many Moles of NaOH equals the moles of KHP?
The same number of moles for each.
How many moles in 30.0 g of NaOH?
0.75 moles in 30.0g of NaOH.
How many liters of naoh are in 1.3 moles of 3.42 m of naoh?
Molarity = moles of solute/Liters of solution 3.42 M NaOH = 1.3 moles NaOH/Liters NaOH Liters NaOH = 1.3 moles NaOH/3.42 M NaOH = 0.38 Liters
How many moles of NaOH are in 8 g of NaOH?
8 grams NaOH (1 mole NaOH/39.998 grams) = 0.2 moles NaOH
How many moles are in gram of NaOH?
moles = mass/Mr moles = 100/(23+16+1) moles of NaOH = 2.5mol
How many grams of NaOH are there in 5.2 moles NaOH?
208g NaOH
How many moles of NaOH are in 23.3 mL of 0.162 M NaOH?
The number of moles is 0,0038.
How many moles are in 15 mL of 2.9 M NaOH?
Molarity = moles of solute/liters of solution ( 15ml = 0.015 liters ) 2.9 M NaOH = moles NaOH/0.015 liters = 0.0435 moles of NaOH
How many moles are there in 9.4 g of NaOH?
Molecular mass of NaOH= 40.0 grams9.40 grams / (40.0 grams) = .235 moles NaOH
How many moles of NaOH needed to prepare 300 mL of a 0.2 m solution of NaOH?
You need 2,4 g NaOH (0,06 moles).
How many Moles of NaOH equals the moles of KHP?
The same number of moles for each.
How many moles are there in 8 g sodium hydroxide?
8 g NaOH x 1 mole NaOH/40 g = 0.2 moles NaOH
What is the mass of 3.42 moles of NaOH?
3.42 moles NaOH (39.998 grams/1 mole NaOH) = 137 grams NaOH
