Answer to Question #151677 in General Chemistry for Cessar

Question #151677

How many milliliters of 0.7800M LiBr can be made if 125.0 g of LiBr are dissolved?

Expert's answer

1mol = 86.845 g

? = 125g

(125g)/(86.845g)

= 1.4733moles

1.4733 = 125g

0.7800moles = ?

Therefore

( (0.7800)(125))/ 1.4733

=66.18g

1g = 1 millitre

66.18g = (66.18)(1)

= 66.18 Ml

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