Question

Hydrogen burns in oxygen to form water. What mass of oxygen is needed for 1 g of hydrogen, and what mass of water is obtained

Answer 1

t is given that the ratio of hydrogen and oxygen by mass to form water is 1:8. Then, the mass of oxygen gas required to react completely with 1g of hydrogen gas is 8g.

Molecular Mass:

• The microscopic bulk (m) is the bulk of a given particle: it is calculated in daltons (Da or u).
• Different particles of the unchanging compound may have various microscopic public cause they hold different isotopes of an aspect. The accompanying batch relative microscopic mass, as delineated by IUPAC, is the percentage of the bulk of a particle to the united atomic mass whole (as known or named at another time or place the dalton) and is unitless.
• The microscopic bulk and relative molecular bulk are despite everything but had connection with the bony object in mouth bulk. The molar bulk is delineated as the bulk of a likely substance detached apiece amount of a meaning and is meant in g/mol.
• That form the molar bulk an average of many atoms or particles, and the microscopic mass the bulk of individual particular piece or particle. The molar bulk is mostly the more suitable figure when handling macroscopic (consider-smart) quantities of a essence.

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