965 Grams of an Unknown Substance Were Diluted with Water

question 23

Multiple Choice

96.5 grams of an unknown substance were diluted with water in a 1.000 L volumetric flask. It was determined that the concentration of the substance was 1.22 M. What is the molar mass of the unknown substance?

• A) 117 g·mol^-1
• B) 79.1 g·mol^-1
• C) 1.26×10^-2 g·mol^-1
• D) 65.4 g·mol^-1

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Definitions:

Axon

An axon is a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.

Reuptake

The absorption of a neurotransmitter by a neurotransmitter transporter of a pre-synaptic neuron after it has performed its function of transmitting a neural impulse.

Uptake

The process by which substances are taken into cells or organs, including the absorption and assimilation of substances by living organisms.

Reabsorption

The process by which the kidneys filter waste materials from the blood and reabsorb essential substances needed by the body.