How to prepare cyclohexane.

A while back in A level Chemistry we have been completing a practical on preparing a cyclohexane. Today’s blog post I will show the practical instructions with photos of our set ups and final product. This is to celebrate the ending of British Science Week 2020!

Part 1: preparation

Distillation apparatus
  1. Add 10cm3 of cyclohexane to a small round bottom or pear-shaped flask (CARE: don’t get it on your skin. Don’t inhale it. Keep away from naked flame.)
  2. Slowly add 4cm3 of concentrated phosphoric(v) acid and mix thoroughly (CARE: don’t get it on your skin. Mix slowly to prevent it getting too hot due to it being an exothermic reaction.)
  3. Add a few anti-bumping granules to the mixture, then set up the apparatus for reflux alongside an electric heater or sand bath (CARE: avoid splashing when adding granules.)
  4. Heat the mixture under reflux at 70oc for 15 minutes, adjust the heating and cooling rates to ensure that all condensation occurs in the lower half of the condenser (CARE: avoid water contact with electricity.)
  5. Stop heating and allow the glassware to cool for a few minutes (CARE: don’t touch the hot glass whilst it cools.)
  6. Rearrange the apparatus for distillation
  7. Raise the temperature and distil very slowly, collecting the distillate which comes over between 70oc and 90oc (CARE: don’t raise the temperature too fast. Don’t touch any apparatus which is hot.)

Part 2: purification

The pure cyclohexene we made
  1. Add an equal volume of saturated sodium chloride solution to the distillate in a separating funnel, shake gently and release any pressure build-up (CARE: avoid pressure build up and hence an explosion.)
  2. Allow the layers to separate and then discard the lower aqueous layer
  3. Wash the organic layer with an equal volume of water and discard the lower aqueous layer
  4. Run the remaining organic layer into a small conical flask
  5. Add a few lumps of anhydrous calcium chloride and swirl the mixture – if the liquid does not become clear, add more anhydrous calcium chloride and swirl again (CARE: avoid skin contact.)
  6. Finally decant the clear liquid into a weight container (CARE: avoid skin contact.)
  7. Reweigh the container and find the mass of cyclohexane that you have prepared (CARE: avoid skin contact.)
Using Bromine water to confirm that the product was an alkene as the bromine water should turn form orange to colourless when an alkene is present.

Part 3: organic functional group identification

  1. Test for the presence of carbon-carbon double bond in the product

Happy International Women’s Day!

To celebrate International Women’s Day I am going to tell you about some of my role models. So in no particular order:

1. Emily Pankhurst – she was an English political activist and is know for organising the UK suffragette movement

2. Emily Davidson – she was an martyr for the suffragette movement in order to get the rights for women’s votes within England

3. Rosa Parks – she fought for equal rights in America for refusing to give up her seat during the Montgomery bus boycott

4. Katherine Johnson – she was an American mathematician who helped to calculate the orbital mechanics for NASA in order to complete the success of the first US crewed spaceflight

5. Malala Yousafzai – she helps to fight for human rights especially for women and children’s education from the Taliban

6. all the women in my family including my Mum, my Grandma and my Nan (who’s birthday is today – Happy Birthday Nanny!)

A very busy half term

This past week, I’ve been busy with my half term. From completing homework, to watching some new Netflix shows as well as meeting up with a few of my friends. Last Saturday, I went for a meal with a few of my friends which became eventful as we forgot to check if the 40% off voucher was valid on a Saturday. On the Monday, I met with a few of my friends who had moved to different schools for sixth form. it was lovely to catch up over coffee. On Wednesday, I went to a swimming pool with water slides but my friends and I were sad as the wave machine was not working.

On Friday, I met with some more of my friends who had moved schools and we went bouldering before heading to the Cathedral to see the light show display. In the evening I went to my friends Birthday Party and met many new people. On Saturday evening, I met with another friend from school over coffee to catch up.

Finally, today has been an inset day so I’ve had the chance to finish my homework and prepare for school tomorrow. A recent series I have been watching is Locke and Key as well as The Stranger. I also watched the movie Midnight Sun. Overall, I have had a good half term and am ready to get back to school as I am now officially half way into year 12.

Happy Founders Day!

Today across the world we celebrate Founder Day. Robert Baden Powell was born on February 22nd 1857. However, previously I have celebrated World Thinking Day – which is the Guiding version of Founders Day after, Robert Baden Powell’s wife, Olave – whom also has the same birthday just in 1889.

I like to spend today thinking about my fellow Scouts and Guides from around the World. Having had the opportunity to attend WSJ2019 I feel honoured to be part of such a giant group of people.

Tea for Blue

Howdy Blue here,

84’s been a busy 🐝 recently, so I’ve taken over the reins again.

84 has told me that if I’m doing a take over I have to blog about something useful. Well I nearly said phnh to that but then I had an idea – I’m going to share with you how I make the perfect cup of tea.

Apologies in advance if I miss a few steps but I’m only a little bear. 🐻

Step one:

Fill the kettle with water and turn on the kettle.

Step two:

While waiting for the water to boil, get a mug and place a tea bag in it.

Step three:

Now here’s the shocker place your desired amount of milk into the mug.

Step four:

When the water has boiled, pour it into the mug.

Step five:

Leave the tea to brew for a few minutes

Step six:

Stir the tea to see how strong it is – check the colour I like mine strong so leave the teabag in for a while.

Step seven:

When the tea is the desired strength remove the teabag

Step eight:

Leave to cool for a short time – nobody likes a burnt tongue.
Finally enjoy the perfect cup of tea.

02022020

Happy Palindrome Day
Today it’s 02 02 2020
Some of you are aware that my name is also a palindrome.
Palindrome comes from the Greek palin, meaning again and dromos, meaning way or direction.

So I thought today I’d share a few more examples with you

racecar
refer
kayak
level
madam

Was it a car or a cat I saw
Never odd or even

Even four of the species of Pokemon are palindromic: Eevee, Girafarig, Ho-Oh, and Alomomola

WOW (I bet you didn’t see that coming!)

On the crest of a wave

So this week I have become involved in my district’s gang show. I am now a tea girl for the Sunday session as well as helping with the set painting and decorating as well as maybe being backstage during show week. Now Sis84 I do not think is very happy with me due to gang show being her thing due to her performing on stage. Nether the less, I have started making paper cranes for one of the scenes as we need 1001 of them. I am aiming to be able to say that I have made 20% of the cranes on the stage but I have lost count of how many paper cranes I have already made. However, Mum84 has made 10 cranes so she is able to say that she has made 1% of the total cranes. Whilst I was making some of the cranes, Blue came along with me and made friends with Olivia the rainbow from a different unit to Mum84’s unit.

World Scout Jamboree (mini) reunion

A couple of weeks ago, I met with some of my World Scout Jamboree unit in Birmingham. The reunion included Blue the bear and if you remember Brian the flamingo. Yes, you read that right, we walked around Birmingham with a flamingo and a bear.

We started the day off with coffee before then heading to do a little bit of shopping. We went into the Worlds largest Primark where there was a Disney café, a Harry Potter section, and over 5 floors of clothing and sales. In the make up section, we decorated Brian (the flamingo) with some of the eyeshadow before we headed to get some food to eat. The downfall here was, we all agreed to meet at McDonalds, except we went too 2 different stores – however, En route we did see a Santander building. (I’m still a proud member of the International Anthony Santander Fan Club)!

After lunch we did a bit more shopping and went into all 3 Pandora shops looking for a charm for my friend. In the end, we managed to find the charm in one of the shops. We then wondered around for a little while before, one of my friends brothers (who did attend WSJ) met up with us and so he took a photo of us by the Bullring statue. We all then wondered around for a bit more until it was nearly time to leave – in order for everyone to be able to get the right trains home as in the morning there was a little bit of a train issue.

A couple of us went into Tesco Express before saying goodbye where we brought a meal deal to share between us all. The chicken and bacon sandwich was very nice – thank you! It was then time to say our goodbyes before everyone headed home.

As I then went to meet my parents, we spotted some bears in H&M home, so conveniently, Blue had to have a photo with them. Also, as we headed home we stopped at IKEA for our usual rendezvous before continuing to head home.