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olga2289 [7]
3 years ago
5

How do you find moles

Chemistry
2 answers:
Marizza181 [45]3 years ago
6 0
A mole is equivalent to 6.02 x 10^23 molecules at STP. Use a conversion factor like the following.
Example: The initial value x  The value you are trying to convert to
                                               ------------------------------------------------
                                              The value you are trying to get rid of

MA_775_DIABLO [31]3 years ago
6 0
Well there are different ways in which you can find number of mole.
1. mole =mass divide by Mr
2. mole= concentration multiply by volume
3.PV =NRT 9For ideal gas) wher N is the number of mole

it all depends on the question!!!
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We consider a spherical air bubble rising through a water tank. The pressurepinside the bubble isequal to its surrounding pressu
DENIUS [597]

The answer is a change in internal energy causes work to be done and heat to flow into the system.  

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4 years ago
How much Ca(NO3)2 should be weighed out to have 0.650 mol?A) 66.4 g.B) 97.68.C) 107 g.D) 133 g.E) 165 g.
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Answer:

C) 107 g

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Step 1: Calculate the molar mass of Ca(NO₃)₂

We can calculate the molar mass of Ca(NO₃)₂ by adding the masses of its elements.

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M = 1 × 40.08 g/mol + 2 × 14.01 g/mol + 6 × 16.00 g/mol

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Step 2: Calculate the mass corresponding to 0.650 moles of Ca(NO₃)₂

We multiply the number of moles by the molar mass.

0.650 mol × 164.10 g/mol = 107 g

6 0
4 years ago
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