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Why the necks of volumetric flasks and pipets have very small diameters?
Wiki User
∙ 11y ago
just because they are
Wiki User
∙ 11y ago
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Why do the cuffs and collars of shirts become dirty fast?
Because they are prone to rubbing contact, the collar with our necks and the cuffs with our wrists and to the tops of work-surfaces. Collars generally only get dirty on the inside, but cuffs get dirty inside and out.
What do you use to pour liquid into small containers lab terms?
Pipettes are useful, but I'm not sure if that's what you're after.
Why the colors of the ampules are different?
Ampoules often have colored rings of paint or enamel around their necks. Color coding of modern ampoules is done during the manufacturing process. A machine paints colored rings on the ampoule shortly after it's been sealed. The rings are made of a substance that is readable by other machines. These color codes identify the substance inside the ampoule so that it does not need to be tested to verify the contents. The machine-readable color codes allow for accurate handling of the substance for the purposes of storage, labeling, and secondary packaging
Why are wedding rings made of gold?
Because humans like to waste precious minerals by dangling them around and from our ears, necks, wrists and fingers as signs of affluence and status symbols. What better way to say 'I have more money than I know what to do with' than to craft a ring out of gold rather than using it for a more practical use? It could be argued that females have evolved to take a shine to sparkly things as they, and males also, consider their shiny adornments attractive. They arguably draw attention to the more feminine features and draw attention away from flaws. And also because gold is precious, people feel it shows how much they value marriage.
How carbon dioxide is prepared in the laboratory?
The most common method of preparation of Carbon dioxide in lab is by action of dilute mineral acids on Calcium Carbonate. It is easy to do, economical and comparatively safe and uses no energy.Things needed:Apparatus:Woulf's bottle (One having two necks)CorksTubesGas cylinderWaxThistle funnelChemicals:WaterHydrochloric acid dilute (30 percent preferably)Marble pieces (Calcium carbonate)Setting the apparatus:First of all, Take a tube and bend it at two points on 90 degree angle.Take a woulf bottle and fix two, bored corks in its openings.Insert thistle funnel in one cork and delivery tube's one end in other.Insert the other end of tube in a gas cylinder.Make The Apparatus airtight by using wax or some other material.Preparation of Gas:Remove one cork and insert small calcium carbonate pieces in the bottle.Close the bottle again. The funnel must be deep inside the marble pieces otherwise Gas will escape through it.Start pouring Dilute Hydrochloric acid using thistle funnel.Carbon dioxide will start forming and you will be able to detect its evolution by production of effervescence in the woulf's bottle.Safety precautions:Have a good ventelation system.Wear a gas-mask or a simple mask, at least.Be careful with acid, It can be really dangerous if you don't take care.Carbon dioxide can suffocate you. Be careful.Avoid prolonged exposure to Carbon dioxide.
Why do you think flasks with curved necks are important?
Flasks with curved necks are important because they are designed to fit the human hand making them easier to grip and pour from. Additionally the curved neck allows for a smoother pour and helps prevent spills. Lastly the curved neck helps to reduce the amount of air that enters the flask which helps to preserve and protect the contents. Designed to fit the human hand making them easier to grip and pour from Curved neck allows for a smoother pour and helps prevent spills Reduces the amount of air that enters the flask which helps to preserve and protect the contents
When was The Necks created?
The Necks was created in 1989.
Why do flamingos have long necks?
Flamingo's have long necks because they use it for fighting enemy's by swinging their necks.
Do dolphins have necks?
Yes. Dolphins have short stiff necks.
Who sings long necks and red necks?
Johnny storm
When was Necks EP created?
Necks EP was created in 2005.
When was Up to our Necks created?
Up to our Necks was created in 2004.
What is the duration of Up to our Necks?
The duration of Up to our Necks is 1.08 hours.
What are the properties of bolt on necks set neck and through necks?
bolt on necks are cheaper than set necks, and set necks are cheaper, than neck through. bolt on necks have less sustain but are cheap and easy to repair. set necks have more sustain, are expensive and harder to repair than bolt-on. neck through has more sustain than set neck but is more expensive and harder to repair than set neck.
Did long necks swim?
Sauropods didn't, but plesiosaurs did. Both had long necks
When was Snappin' Necks created?
Snappin' Necks was created on 1995-03-03.
When was The Boys - The Necks album - created?
The Boys - The Necks album - was created in 1998.
