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If 20.00mL of a 1.50M solution of KBr is diluted to a final volume of 150.0mL what is the new molar concentration?
initial molarity*initial volume= final molarity*final volume Initial molarity= 1.50M Initial volume= 20.00ml Final Volume=150.0ml Thus final molarity =1.50M*20ml/150ml=0.200M. New molar concentration= final molarity
What is its volume when the pressure is tripled?
1/3 of the initial volume (Boyle-Mariotte law).
What meniscus is being read if you measuring the volume of dark colored liquids?
1.read the bottom of the curve 2. you must read the meniscus at eye level
Do you read a miniscus from top to bottom or bottom to top?
bottom
What is the volume of attraction when alcohol and water were mixed?
The volume of the obtained solution is decreased compared with the sum of the two initial volumes.
If 20.00mL of a 1.50M solution of KBr is diluted to a final volume of 150.0mL what is the new molar concentration?
initial molarity*initial volume= final molarity*final volume Initial molarity= 1.50M Initial volume= 20.00ml Final Volume=150.0ml Thus final molarity =1.50M*20ml/150ml=0.200M. New molar concentration= final molarity
What does initial volume mean?
It refers to the volume of an object at the start of an experiment.
What are the rules for reading a graduated cylinder?
Read volume from the bottom of the meniscus (the crescent shaped pattern that many liquids form.)
How can you find the volume of a liquid?
First you put the liquid in the graduated cylinder.Then you read the volume at the bottom of the meniscus.The meniscus is the slight curve at the edges of the surface where the liquid touches the container.
Reading the volume of liquid inside the graduated cylinder?
Always read from the bottom of the meniscus (where the liquid reaches up the side of the container).
How could the volume of a gold nugget be found using water and a graduated cylinder?
Fill the graduated cylinder half full (may be more or less depending on the actual situation) and drop in the gold nugget. Read the final volume mark and subtract the initial volume from the final volume. This difference in volume is the volume of the nugget. This is related to the principle of buoyancy and it is said to have had a colourful story behind its discovery. Read the Wikipedia article on 'Eureka (word)' to learn more.
How do you find the volume of a displaced object when the initial and final volumes are shown?
Subtract the initial from the final
What is its volume when the pressure is tripled?
1/3 of the initial volume (Boyle-Mariotte law).
What is Charles law and boyles law?
BOYLES LAW The relationship between volume and pressure. Remember that the law assumes the temperature to be constant. or V1 = original volume V2 = new volume P1 = original pressure P2 = new pressure CHARLES LAW The relationship between temperature and volume. Remember that the law assumes that the pressure remains constant. V1 = original volume T1 = original absolute temperature V2 = new volume T2 = new absolute temperature P1 = Initial Pressure V1= Initial Volume T1= Initial Temperature P2= Final Pressure V2= Final Volume T2= Final Temperature IDEAL GAS LAW P1 = Initial Pressure V1= Initial Volume T1= Initial Temperature P2= Final Pressure V2= Final Volume T2= Final Temperature Answer BOYLES LAW The relationship between volume and pressure. Remember that the law assumes the temperature to be constant. or V1 = original volume V2 = new volume P1 = original pressure P2 = new pressure CHARLES LAW The relationship between temperature and volume. Remember that the law assumes that the pressure remains constant. V1 = original volume T1 = original absolute temperature V2 = new volume T2 = new absolute temperature P1 = Initial Pressure V1= Initial Volume T1= Initial Temperature P2= Final Pressure V2= Final Volume T2= Final Temperature IDEAL GAS LAW P1 = Initial Pressure V1= Initial Volume T1= Initial Temperature P2= Final Pressure V2= Final Volume T2= Final Temperature
What two factors numbers are used to calculate ventilation rate?
final tidal volume - initial tidal volume time taken to breathe the final volume should be the larger number and the initial is when the lungs are empty
What meniscus is being read if you measuring the volume of dark colored liquids?
1.read the bottom of the curve 2. you must read the meniscus at eye level
Does a flask have a meniscus?
Yes. A meniscus is a visible curve in a liquid caused by the attraction of the liquid for the sides of the flask. Read the volume of your flask from the bottom of the meniscus.
