Determine the number of particles in 12.75 g of magnesium chloride(MgCl) *O 8.054 x 102² particlesO 2.666 x 10* particlesO 1.595 x 10²3 particlesO 0.26particles

1 mole of any compound contains Avogadro number6.022×1023 of particles Recall the expression of…

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Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter3: Equation, The Mole, And Chemical Formulas

Section: Chapter Questions

Problem 3.61QE

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Question

Determine the number of particles in 12.75 g of magnesium chloride
(MgCl) *
O 8.054 x 102² particles
O 2.666 x 10* particles
O 1.595 x 10²3 particles
O 0.26
particles

Expert Solution

Step 1

1 mole of any compound contains Avogadro number $(6.022 \times 10^{23})$ of particles

Recall the expression of moles

$m o l e s = \frac{g i v e n m a s s o f t h e c o m p o u n d}{M o l a r m a s s o f t h e c o m p o u n d} M o l a r m a s s o f M g C l_{2} i s 95.211 g / m o l$

We have to find number of particles present in 12.75 g of $M g C l_{2}$

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