Making Measurements Consider the following thermometer, and use it to answer the question. calibration Thermometer 200 differenc
e between 2markedvalues #ofspacesbetween marked values 30 20 10 What is the nearest value that we can estimate the volume of this thermometer to? A. 0.1°C B. 0.01 C C. 0.00 °C D. 1 °C
1 answer:
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The concentration after dilution is 1.4%.
We are aware that concentration and volume are related to each other by the formula -
=
, where we have initial concentration and volume on Left Hand Side and final concentration and volume on Right Hand Side.
Keep the values to calculate final concentration.
= (53.5 × 5.4)/205.0
Performing multiplication on Right and Side
= 288.9/205.0
Performing division on Right Hand Side
= 1.4%
Hence, the final concentration is 1.4%.
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The complete question is -
A 53.5 mL sample of an 5.4 % (m/v) KBr solution is diluted with water so that the final volume is 205.0 mL.
Calculate the final concentration and express your answer to two significant figures and include the appropriate units.