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2 years ago

Which object has the MOST gravity in the solar system?

Chemistry

2 answers:

Serggg [28]2 years ago

7 0

Answer: Jupiter.

Explanation: Jupiter is the largest and most massive planet in the Solar System. Its mean radius, at 69,911 ± 6 km, makes it 10.97 the times the size of Earth, while its mass (1.8986×1027 kg) is the equivalent of 317.8 Earths.

faltersainse [42]2 years ago

5 0

Answer:

Jupiter

Explanation:

It is 2.5 times on what we experience on earth, it’s just depends on 3 things the density, mass and size

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14. If 7.00 mol of PCI, and 5.00 mol of H2O react in the following chemical reaction, wind

Ymorist [56]

Answer:

Option A. H₂O

Explanation:

PCl3 + 3H2O → H3PO3 + 3HCI

From the equation,

We can see clearly that for every 3moles of H2O, 1mole of PbCl3 is needed. This clearly indicates that H2O is the limiting reactant. This can further be proved by doing the following:

From the equation,

1mole of PbCl3 required 3moles of H20.

Therefore, 7moles of PbCl3 will require = 7x3 = 21moles of H2O. This amount(i.e 21moles) of H20 is far greater than what was given (i.e 5moles of H2O) from the question.

Now let us consider the reverse case as follows:

From the equation,

1mole of PbCl3 required 3moles of H20.

Therefore, Xmol of PbCl3 will require 5moles of H2O i.e

Xmol of PbCl3 = 5/3 = 1.67moles

This amount(i.e 1.67moles of PbCl3) obtained is smaller than what was given (i.e 7moles of PbCl3) from the question.

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3 years ago

How many moles of tetracycline (C₂₂H₂₄N₂O₈) are in 71.9 grams

slavikrds [6]

Explanation:

to find the number of moles for tetracycline you use the formula,

number of moles=mass/molar mass

the mass is given in the question which is 71.9g and the molar mass is 444.43(you find I by adding the number of atoms for each element in the compound,12×22+1×24+14×2+16×8)

n=71.9g/444.43

=0.16g/mol

I hope this helps

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2 years ago