Answer:
If you know the formula to use you should have no trouble getting the answers.
molality = mols/kg solvent.
mols sucrose = g/molar mass
kg solvent = 0.275 kg.
Lewis structures are diagrams that show the bonding between
atoms of molecule and the lone pairs of electrons that may exist in the
molecule. Phosphoryl iodide is used in the preparation of organophosphorus
derivatives and phosphate esters. The Lewis structure of POI3 is:
I rushed to the door to see what loud noise i heard, I seen a strange man standing on top of a body. As I screamed loudly, he started rushing towards me. ... He then began to slice my neck and I started to bleed out and collapsed on my front door. I suddenly woke up and realized it was all a dream, I went back to sleep.
As known, nitrogen could form 3 bonds based on octet rule, because it has 5 valence electrons. That means it needs 3
Answer:
10.5grams
Explanation:
Molarity = number of moles (n)/ volume (V)
According to this question;
Volume = 750 mL = 750/1000 = 0.75L
Molarity = 0.35M
number of moles (n) = molarity × volume
n = 0.35 × 0.75
n = 0.2625mol
Using mole = mass/molar mass
Molar Mass of NaOH = 23 + 16 + 1
= 40g/mol
mole = mass/molar mass
0.2625 = mass/40
mass = 10.5grams
10.5 grams are needed to prepare 0.75L of a 0.35 M solution of NaOH.