How many grams of c6h12o6 are in 1. 90 x 1022 molecules of c6h12o6? the molar mass of c6h12o6 is 180. 0 g/mol. avogadro's number
1 answer:
5.6 × 10⁻³ g/mol of C₆H₁₂O₆ are in 1. 90 x 10²² molecules.
The mass per unit amount of a certain chemical entity is known as the molar mass (symbol M, SI unit kgmol1). The chemical entity in question should always be identified in accordance with the mole definition.
The number of atoms present in 1 mole of hydrogen is equal to 6.02 × 10²³ known as Avogadro’s number (NA).
The units of molar mass follow its definition; grams per mole. Mathematically, the defining equation of molar mass is
Molar mass = mass/mole = g/mol
180g/mol glucose has = 6.02 × 10²³
x g/mol glucose has = 1.90 × 10 ²²
To find x;
x = 5.6 × 10⁻³ g/mol
Therefore, 5.6 × 10⁻³ g/mol of C₆H₁₂O₆ are in 1. 90 x 10²² molecules.
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Answer:
a)
b) is the limiting reagent
c) Moles of produced = 2.45 mol
b) Moles of left = 1.75 -1.22 = 0.53
Explanation:
a) Balanced reaction:
b)
No. of mole of
No. of mole of
As, it is clear from the reaction that,
1 mol of requires 3 moles of
1.75 mol of require = 1.75 × 3 = 5.25 mol of
As, only 3.68 mol of is present, so
is the limiting reagent.
c)
3 moles of form 2 moles of
3.68 moles of will form =
d)
is present in excess.
3 moles of requires 1 mol of
3.68 moles of will require =
left = 1.75 -1.22 = 0.53 mol