theprof Member Profile in The AnswerBank

Attention all chemists!

A lowly biologist is in need of your help! I am making bacterial Minimal Basal Salts media, which calls for a solution of 0.4g SnCl X 2H2O in 100ml of DI water. I have attempted this solution twice,...

boobesque

et al..

whenever i read about an experiment it is often by mr x and mr z (et al). what is et al? thanks

MikeMikeMike

Prince Rupert's drops

Does anyone know anywhere you could order these from the internet?

champ

effect of enzyme concentration on enzyme activity

i know that enzyme concentration effects enzyme activity but im not sure exactly how, if anyone can give me a good website where i can find this answer, i would be very greatful. or if anyone can tell...

BigB

Scientific name for water

Hi Does water have a scientific name? I know it is H2O but what is the actual name (Eg. Hydrogen Dioxide)

longneck

Why use hydrochloride salts?

Why are medicinal drugs commonly converted to thier hydrochloride salts? For example, methadone HCl.

JessyBaby

Silver Compounds

Does anyone know what silver compounds are used for?

pab

medion 19" monitor

Aldi have a Medion 19" monitor as a special from the 11th May.The spec seems good, does anyone own one of these and if so is it a good buy.?179 reduced from original offer.

blondie2006

oxidase negative?

What does it mean when they say that enteric bacteria are "oxidase negative" ?

commoner

Norton

Hi. My annual subs to the Norton AV and Firewall are now due and they want over ?68 pounds to update them.......... What would the alternatives be to ignoring this demand for cash and going for...

cas49

Microsoft fraud

Almost two years ago a new neighbour offered to build a computer for us.This he did and we paid him ?1000. This morning I have had a message from Microsoft saying that my copy of XP is not genuine and...

jackrob15

Mint Properties

I posted a question recently about a garlic and lemon investigation. My sheet aslo asked about mint which we found to have no antibacterial properties, however, our worksheet did say that it numbs...

SKA

cytochrome c

Can anyone tell me interesting things about cytochrome c? Or just tell me anything please I need a list of 10 things about it!! Thanks.

jackrob15

killing bacteria with lemon and garlic

I am doing a science experiment write up and lemon in my experiement 'killed' bacteria on a agar plate along with garlic. Do these have antibacteria properties and why. What in them does it, and is...

boobesque

whats in blu-tack?

i was wondering if anyone know the components of blu-tack? i only ask as mr boobs tried to soften some up in the microwave last night and made sparks come out of the microwave!

PullUpTulip

Voltage Converter

Hi, I need a step down converter for US to UK voltage and am unsure what Wattage I will need. It's a coffee maker by the way. Most converters I have seen are around the 45 mark, would this be...

buddha01

what does cation constituents mean.

what does that mean. the buffering action of the inorganic cation constituents on the organic acids present

ZUB

interesting puzzle

Thirty-six minus ten = 3 + 3 + 3 x 3 = 20 - 15 = Add The Numbers, What Is the Correct Answer.

Allen Crisp

Mobile phones

If I call someone who is on a landline then the position of the receiving phone is fixed, as there is a wire going into the building, so the signal knows where to go, if you see what I mean. If I call...

4lec

Lowest Possible Usage Temperature Of Petrol?

I read somewhere the other day, that the lowest temperature diesel can be used is approx -23 degrees centigrade. Below this temp it turns to 'gel'. What is the temperature at which petrol does this,...

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