6 molar
Just add the two masses: 40 + 120 = 160 grams.
The mole of a metal, such as sodium, is generally assumed to consist of Avogadro's Number of single atoms. The gram atomic mass of sodium is 22.9898. The number of moles in 120 grams of Na is therefore 120/22.9898, or 5.22, rounded to the justified number of significant digits.
120
Let the asked volume (not minimum but exactly) be V1 mL,then V1*C1 = V2*C2,so V1 = [150 (mL) * 0.800 (mol/L)] / [2.81 (mol/L)] = 120/2.81 = 42.7 mL of the 2.81 M NaOH solution
120 ml of water weighs 120 grams
120 grams = 4.23 ounces.
120 grams = 4.23 ounces
There are 1000 grams in one kilogram. Therefore, 120 grams is equal to 120/1000 = 0.12 kilograms.
Moles of Ca(NO2)2=120/132=0.91 molesMolarity=0.91/0.24= 3.79M
120 grams = 4.233 ounces
i think it equals .120 grams
to solve this you must have the molecular weight of NaoH and you can get this by add the molar masses together (H=1 , O=16 , Na-23 ) then multiply the no of moles by the molecular mass that is for mole gram conversion so you have (23+16+1)= 40 and already you have multiplied (2.40)=80 then 2 . 40 = 120 then 80 / 40 = 2 the answer is 2