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Find the ions in the image. Please help it’s a mole problem

Find The Ions In The Image Please Help Its A Mole Problem class=

Sagot :

We are required to find how many formula units of potassium phosphate in 42.5 g

potassium phosphate (K3PO4) have molar mass of 212.27 g/mol

We are given the mass in grams = 42.5g

Now we can find the formula units.

n = m/M where m is the mass and M is the molar mass

n = 42.5g/212.27 g/mol

n = 0.2002 mol

There are 6.022x10^23 formula units in 1 mole.

So to get the number of formula unit, multiply avogadros constant with number of moles

formula units = 6.022x10^23 x 0.2002

formula units = 1.206x10^23

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