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Leni [432]
2 years ago
15

Calculate the molecular mass of glucose

Chemistry
1 answer:
yan [13]2 years ago
6 0
  • Glucose = C₆H₁₂O₆.
  • Atomic mass of C = 12 u
  • Atomic mass of H = 1 u
  • Atomic mass of O = 16 u
  • Therefore, the molecular mass of glucose
  • = (6 × Atomic mass of C) + (12 × Atomic mass of H) + (6 × Atomic mass of O)
  • = (6 × 12) + (12 × 1) + (6 × 16) u
  • = 72 + 12 + 96 u
  • = 180 u

<u>Answer</u><u>:</u>

<u>1</u><u>8</u><u>0</u><u> </u><u>u</u>

Hope you could understand.

If you have any query, feel free to ask.

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An ionic bond can be formed when one or more electrons are
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Answer:

Are transferred completely from the valence shell of an element to the other

Explanation:

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3 years ago
According to the equation below, how many moles of PbO are required to generate 3.88×1023 nitrogen molecules?
saul85 [17]

Answer:

1.935 mole

Explanation:

We'll begin by calculating the number of mole present in 3.88x10^23 molecules of nitrogen(N2). This can be obtained as follow:

From Avogadro's hypothesis, 1 mole of any substance contains 6.02x10^23 molecules. Therefore 1 mole of N2 contains 6.02x10^23 molecules.

Now if 1 mole of N2 contains 6.02x10^23 molecules,

Then Xmol of N2 will contain 3.88x10^23 molecules i.e

Xmol of N2 = (3.88x10^23)/6.02x10^23

Xmol of N2 = 0.645 mole

Now, we can obtain the number of moles of PbO required to generate 3.88x10^23 molecules (i.e 0.645 mole) of N2. This is illustrated below:

The equation for the reaction is given below:

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From the balanced equation above, 3 moles of PbO produced 1 mole of N2.

Therefore, Xmol of PbO will produce 0.645 mole of N2 i.e

Xmol of PbO = 3 x 0.645

Xmol of PbO = 1.935 mole.

From the calculations made above,

1.935 mole of PbO will produce 3.88x10^23 molecules of nitrogen (N2).

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Can you pls clarify this

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I dont

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