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A student wants to measure out a 0.163 mol sample of barium fluoride (BaF2). How many grams of is this?
Additional Information:
If needed, Molar Mass of BaF2 is 175.34 g/mol
If needed use 6.022 x 1023 for Avogadro's number.
Format your answer:
With three significant figures
Include the correct unit.

Respuesta :

CrystalQueen

Answer:

28.6 grams BaF₂

Explanation:

To find the amount of BaF₂ in grams, you need to multiply the given value (moles) by the molar mass. The molar mass is a ratio which describes the mass (g) of BaF₂ per every 1 mole. It is important to arrange the ratio in a way that allows for the cancellation of units (moles should be in the denominator).

Molar Mass (BaF₂): 175.34 g/mol

0.163 moles BaF₂          175.34 grams
----------------------------  x  -----------------------  =  28.58042 = 28.6 grams BaF₂
                                            1 mole

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