The balanced equation for the reaction is as follows
2Na + Cl₂ --> 2NaCl
first we need to find the limiting reactant from the 2 reactants in the reaction
stoichiometry of Na to Cl₂ is 2:1
number of Na moles - 133.0 g / 23 g/mol = 5.783 mol
at STP, molar volume is where 1 mol of any gas occupies a volume of 22.4 L
if 22.4 L occupied by 1 mol
then 33.0 L is occupied by 33.0 L / 22.4 L/mol = 1.47 mol
therefore number of Cl₂ moles present - 1.47 mol
If Cl₂ is the limiting reactant
1 mol of Cl₂ reacts with 2 mol of NaCl
therefore 1.47 mol of Cl₂ reacts with - 2 x 1.47 = 2.94 mol of Na
but 5.783 mol of Na is present which means Na is in excess and Cl₂ is the limiting reactant
NaCl formed depends on amount of Cl₂ present
stoichiometry of Cl₂ to NaCl is 1:2
number of NaCl moles formed - 2 x 1.47 mol = 2.94 mol of NaCl
mass of NaCl formed - 2.94 mol x 58.5 g/mol = 172 g
172 g of NaCl is formed
Answer:
The length of the cubical container will be 17.206 m.
Explanation:
Amount of carbon dioxide gas generated in year by person = 10,000 kg
1 kg = 1000 g
10,000 kg = 10,000 × 1000 g = 10,000,000 g
Moles of carbon dioxide =
Volume of carbon dioxide gas at STP= V
STP conditions = P = 1 atm , T = 273 K
Using Ideal gas equation ;
Let the side of the cube = a
Volume of the cube =
The length of the cubical container will be 17.206 m.
Answer:
A typical laser pulse used in MALDI is about 60 microjoules/pulse at 337 nm. At 337 nm the power is about 6 x 10^-19 J/photon. Doing the math suggests that of 10^14 photons are in a typical desorption pulse
Explanation:
The statement “Ionic crystals are extremely malleable
because they contain a positively charged metal ion” is false. Ionic crystals
are composed of positive and negative ions that are combined so that the
numbers of positive and negative charges are equal.
Oxygen was first produced via photosynthesis as ocean microbes evolved in the event that was called the Great Oxidation Event. Therefore the correct answer is C