To draw and comment on the apparatus used in chemistry practical/laboratory

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‌To draw and comment on the apparatus used in chemistry practical/lab:

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Beakers:

Beakers are cylindrical utensils made up of borosilicate glass, with a flat bottom and the upper opening having a rim around it along with a spout. The spout on their rim’s aids in the proper pouring of solutions and they do not have any covering on the top. Most of the time watch glasses are used to cover their solutions. They are of varying sizes and are used to hold, heat, or mix substances with a proper measure. 





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‌Conical flasks: 

Conical flask, also known as Erlenmeyer flask, is an apparatus having a flat bottom and a long narrow neck, which allows easy mixing of the solution without spilling out the content. Since the flask has a narrow long neck, it is also used to gently heat the content inside with a gentle swirling motion of the flask. The flask can also be covered using a rubber cap or cork. One should always remember never to heat any flask with its cap on as it will lead to pressure and gas build up inside the closed flask and lead to explosions.



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Test tubes: 

The next very common apparatus are the test tubes. They are usually cylindrical pipes made up of glass, with a circular opening on one side and a rounded bottom on the other. They come in different sizes but the most common standard size is 18*150 mm. Test tubes are one of the most important apparatus as they are functional from storing to mixing reagents in any chemical or biological reactions. They become very handy when a large number of samples need to be tested for qualitative assessment of any test.



‌Watch glass: 

This apparatus is made up of a concave piece of glass. It is normally used to hold solids, evaporate liquids, and heat small quantities of different substances as per the need of the experiment. Sometimes, they also become functional in serving as a lid for the beakers.


‌Funnels:

 Funnels are necessary equipment to pour substances and solutions in narrow-mouthed test tubes and conical flasks. There is variety of its available, the most common ones are filter, thistle, and dropping funnels


‌Graduated/Measuring cylinders: 

These are some cylindrical apparatus with several markings up and down the length of the container with the primary function dealing with proper measurement of a specific volume of liquid with precision. While taking readings, one needs to be careful to take into consideration the reading with respect to the meniscus of the liquid.


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‌Pipettes:

 Pipettes are of varying sizes, designed for accomplishing specific goals of volumes. These are narrow glass cylindrical pipes, used for measuring an exact volume of liquid and placing it into another .




‌Burettes: 

A very popular equipment, mostly used in the titration reactions, and is a handful in delivering a known volume of any substance to other equipment. This apparatus is a long-graduated tube, with a stopcock present at the lower end and a narrow opening at the bottom. They are usually set up by using a burette clamp in combination with a ring stand. It usually comes in the sizes of 10ml, 25ml, or 50ml.

‌Tongs and forceps:

 Tongs, though not much in use, are common and basic apparatus in any lab. They are used to grasp and lift hot vessels and harmful substances during any kind of reaction taking place in the lab. Forceps are used to grab small things like solid chemicals that are broken into chunks.



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‌Thermometer:

 Every lab is equipped with a basic thermometer as many a time, certain chemical or biological reaction can be carried out in any particular temperature range only and so to proceed, the thermometer becomes very necessary to measure the temperature of the required solution before moving forward with further reaction procedure




Litmus paper or filter paper:

These two cannot be called apparatus in a proper way, but they serve as one of the most important and basic things that will be required in any kind of laboratories. The litmus paper serves to identify the pH of any solution by changing colors whereas, the filter paper serves in the filtration process



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‌Test tube holder: 

is used to hold test tubes.[1] It is used for holding a test tube in place[2] when the tube is hot or should not be touched.[3] For example, a test tube holder can be used to hold a test tube while it is being heated.[4] Moreover, when heating the tube with liquid or solid contained inside, the holder ought to tightly hold a test tube[5] in order for the tube to be safely held while heating.




‌Glass rod:

A glass stirring rod, glass rod, stirring rod or stir rod is a piece of laboratory equipment used to mix chemicals. They are usually made of solid glass, about the thickness and slightly longer than a drinking straw, with rounded ends.




‌Porcelain dish: 

They are used for the evaporation of liquids and solutions to produce a solid substance or concentrated solutions. Dishes have a shallow flat round surface to promote evaporation. They are made of heat-tolerant glazed porcelain and have a pouring spout for easy sample transfer.





‌Spirit lamp: 

an alcohol burner or spirit lamp is a piece of laboratory equipment used to produce an open flame. It can be made from brass, glass, stainless steel or aluminium.used in denatured alcohol, ethyl alcohol, ethyl hydrate, isopropanol or methanol as fuel



Kipp's apparatus (H²S):

Kipp's apparatus, also called Kipp generator, is an apparatus designed for preparation of small volumes of gases. It was in 1844 by the Dutch pharmacist Petrus Jacobus Kipp and widely used in chemical laboratories and for demonstrations in schools into the second half of the 20th century.
Kipp's Apparatus is used to prepare gases. This alternative gas generator enables gases which are frequently needed in laboratories to be obtained in a simple way.
Kipp's apparatus is specialy used for the preparation of H2S.

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Boiling tube:

boiling tube is a large tube made of glass, 
 freely inside a boiling tube.
Boiling tubes are commonly made from Pyrex glass which can tolerate high temperatures.
Boiling tube is also known as Hard Glass Tube.




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इस ब्लॉग से लोकप्रिय पोस्ट

इंटरनेट की मदद से चला सकते हैं, एक सिम कार्ड से दो नंबर जिस लाजवाब ट्रिक कि हम बात कर रहे हैं उसका इस्तेमाल करने के लिए आपके पास Smart Phone और Internet दोनों ही होने जरूरी है। आपके मन में एक Sim Card से दो फोन नंबर चलाने की बात सुनकर बहुत से सवाल आ रहे होंगे।

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चित्र
इंटरनेट की मदद से चला सकते हैं, एक सिम कार्ड से दो नंबर जिस लाजवाब ट्रिक कि हम बात कर रहे हैं उसका इस्तेमाल करने के लिए आपके पास Smart Phone और Internet दोनों ही होने जरूरी है। आपके मन में एक Sim Card से दो फोन नंबर चलाने की बात सुनकर बहुत से सवाल आ रहे होंगे।  हम आपको बता दें कि एक सिम कार्ड से दो फोन नंबर चलाने के लिए आपको अपने स्मार्टफोन में एक Mobile Application Download करनी पड़ती है। फिर उसकी सहायता से आप आसानी से अपने फोन में 2 नंबर चला सकते हैं। सबसे लाजवाब बात तो यह हैं की शुरुआत में तो आपको इस एप्लीकेशन के माध्यम से बिल्कुल मुफ्त फोन करने की सुविधा दी जाती है। परंतु जब आप दूसरे मोबाइल नंबर का ज्यादा इस्तेमाल करेंगे, तो उस समय आपको इसके लिए पैसे भी देने पड़ते हैं। घर बैठे चुने, किसी भी देश का नंबर इस मजेदार एप्लीकेशन में आपको Country Select करने का विकल्प भी मिलता हैं। यदि आप कनाडा, अमेरिका, चाइना, जापान या फिर किसी भी अन्य देश के मोबाइल नंबर से अपने किसी दोस्त रिश्तेदार या फिर किसी भी अन्य व्यक्ति को फोन करना चाहते हैं, तो आप इस एप्लीकेशन के माध्यम से जब फोन करेंगे तो उन्...
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My mother at sixty six - Kamala Das 1.Summary of the poem, 2.Hindi summary, 3.Extract Based VSA Type Questions,

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चित्र
Flamingo(text book) poetry My mother at sixty six - Kamala Das 1.Summary of the poem, 2.Hindi summary, 3.Extract Based VSA Type Questions, 4.Central Idea; Summary of the Poem 1. Mother as if lifeless: The poetess was on her way back to Cochin the last Friday morning to catch the flight. Her mother was seated beside her in the car. She was sixty-six years old. The old woman started and faded. It was grey like ash. It feeling drowsy. Her mouth remained open. Her face looked pale looked lifeless like a corpse (dead body). 2. The contrast inside and outside: The poetess became panicky. She thought that her mother would not live long. She was deeply pained. The poetess turned her attention away from her mother and looked outside. The world outside was full of life and activity. The young trees appeared like running back at full speed. The children looked happy while moving out of their homes. 3. Mother's weakness and poetess's fear: They reached the airport and assed through the for...
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सोमवार के दिन ऐसे करें भगवान शिव को प्रसन्न, मिलेगा आशीर्वाद

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चित्र
Read more सोमवार के दिन ऐसे करें भगवान शिव को प्रसन्न, मिलेगा आशीर्वाद सनातन धर्म  के त्रिदेवों में से एक  भगवान शिव  को अत्यंत भोला माना जाता है, भगवान शिव को यदि कोई भक्त सच्ची श्रद्धा से उन्हें सिर्फ एक लोटा पानी भी अर्पित कर देता है तो भी वे प्रसन्न हो जाते हैं, इसी कारण उन्हें  भोलेनाथ  भी कहा जाता है। इसके साथ ही भगवान शंकर सदा अपने भक्तों पर कृपा बरसाते हैं। हिन्दू धर्म में सोमवार को  भगवान शिव  का वार माना जाता है। ऐसे में मान्यता है कि सोमवार को यदि भगवान शिव की सच्चे मन से पूजा की जाए तो समस्त क्लेशों से मुक्ति मिलने के साथ ही मनोकामना भी पूर्ण होती है। भगवान शिव को प्रसन्न करने के लिए सोमवार को सुबह उठकर स्नान करके भगवान शिव की आराधना करें। इस समय  भगवान शंकर  के साथ माता पार्वती और नंदी को भी गंगाजल चढ़ाएं। वहीं सोमवार के दिन शिवजी को खास तौर पर चंदन, अक्षत, बिल्व पत्र, धतूरा या आंकड़े के फूल अवश्य चढ़ाएं। ये सभी चीजें भगवान शिव की प्रिय हैं और माना जाता है कि इन्हें चढ़ाने से भोलेनाथ जल्दी प्रसन्न होकर अपनी कृपा बरसाते हैं। ...
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