Molar mass of vitamin B1, C12H17N4OS = 265.34 g/ mol
Molar mass of vitamin B2, C17H20N4O6 = 376.37 g/ mol
Molar mass of vitamin B5, C9H17NO5 = 219.24 g/ mol
Molar mass of vitamin B6, C8H11NO3 = 169.18 g/ mol
Molar mass of vitamin B7, C10H16N2O3S = 244.31 g/ mol
Now,
Order of increasing molar mass = B6 < B5 < B7 < B1 < B2
Answer:
Halogens always form anions, alkali metals and alkaline earth metals always form cations. Most other metals form cations (e.g. iron, silver, nickel), whilst most other nonmetals typically form anions (e.g. oxygen, carbon, sulfur).
Explanation:
Examples: Sodium (Na+), Iron (Fe2+), Ammonium (NH4
The correct answer among the choices given is option A. Hydrochloric acid is a much stronger acid than sulfuric acid given that the concentration both is equal. This can be proved by the pKa of these acids. Hydrochloric acid has a pKa of -6 while the pKa of sulfuric acid is -3. The lower the value of the pKa, the stronger the acidity of the substance.
To answer this question you need to know the molecular mass for both atoms. Nitrogen molecular mass is 14. Oxygen molecular mass is 16. If the 63.65% mass is nitrogen, then the 36.35% would be oxygen.
Then the ratio of nitrogen/oxygen would be: (63.65% /14) / (36.35% /14)= 4.53 /<span>2.28 = 2
</span>That mean there will be 2 nitrogen for every 1 oxygen. The molecular formula should be N2O
Answer:
Explanation:
molarity is moles of solute/L solution
5.5 g 1 moles Kl 1000 mL
_____ * __________ * ________ = 0.22088 M
150 ml of solution 166 grams 1 L
(39 grams K+ 127 grams I) ^
