TheCurlyChemist
TheCurlyChemist
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25 mL of the given HCl solution requires 30 mL @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Question : 25 mL of the given HCl solution requires 30 mL of 0.1 M sodium carbonate solution. What is the volume of this HCl solution required to titrate
30 mL of 0.2 M aqueous NaOH solution?
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Відео

50 mL of 0.5 M oxalic acid is needed to.. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 169 годин тому
Question : 50 mL of 0.5 M oxalic acid is needed to neutralise 25 mL of sodium hydroxide solution. The amount of NaOH in 50 mL of the given sodium hydroxide solution is ; My YT channel :ua-cam.com/channels/_Qz9JtpjUxDZZySk1wCFlw.html GOC playlist: ua-cam.com/play/PLCEPnTQZn9KY8thVYT3qW7HGv06Dc2GyH.html My playlist for Jee (Mains) PYQ : ua-cam.com/play/PLCEPnTQZn9KbN9Pj1edZ4LlvmKAUxOa2V.html My p...
100 mL of a water sample contains 0.81 g of.. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 512 годин тому
Question: 100 mL of a water sample contains 0.81 g of calcium bicarbonate and 0.73 g of magnesium bicarbonate. The hardness of this water sample expressed in terms of equivalents ofCaCO3 is (molar mass of calcium bicarbonate is 162 g mol−1 and magnesium bicarbonate is 146 g mol−1) My YT channel :ua-cam.com/channels/_Qz9JtpjUxDZZySk1wCFlw.html GOC playlist: ua-cam.com/play/PLCEPnTQZn9KY8thVYT3qW...
In order to oxidise a mixture of one mole of.. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 1914 годин тому
Question : In order to oxidise a mixture of one mole of each of FeC2O4, Fe2(C2O4)3, FeSO4 and Fe(SO4)3 in acidic medium, the number of moles of KMnO4 required is: My YT channel :ua-cam.com/channels/_Qz9JtpjUxDZZySk1wCFlw.html GOC playlist: ua-cam.com/play/PLCEPnTQZn9KY8thVYT3qW7HGv06Dc2GyH.html My playlist for Jee (Mains) PYQ : ua-cam.com/play/PLCEPnTQZn9KbN9Pj1edZ4LlvmKAUxOa2V.html My playlist...
0.27 g of a long chain fatty acid was dissolved @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 2421 годину тому
Question : 0.27 g of a long chain fatty acid was dissolved in 100 cm3 of hexane. 10 mL of this solution was added dropwise to the surface of water in a round watch glass. Hexane evaporates and a monolayer is formed. The distance from edge to centre of the watch glass is 10 cm. What is the height of the monolayer? My YT channel :ua-cam.com/channels/_Qz9JtpjUxDZZySk1wCFlw.html GOC playlist: ua-ca...
In an acid-base titration, 0.1 M HCl solution... @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 10День тому
Question : In an acid-base titration, 0.1 M HCl solution was added to the NaOH solution of unknown strength. Which of the following correctly shows the change of pH of the titration mixture in this experiment? My YT channel :ua-cam.com/channels/_Qz9JtpjUxDZZySk1wCFlw.html GOC playlist: ua-cam.com/play/PLCEPnTQZn9KY8thVYT3qW7HGv06Dc2GyH.html My playlist for Jee (Mains) PYQ : ua-cam.com/play/PLCE...
An example of a disproportionation reaction is @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 29День тому
Question : An example of a disproportionation reaction is; (A) 2MnO4- 16H 10I-  2Mn2 8H2O 5I2 (B) 2NaBr Cl2  2NaCl Br2 (C) 2KMnO4  K2MnO4 MnO2 O2 (D) 2CuBr  CuBr2 Cu My YT channel :ua-cam.com/channels/_Qz9JtpjUxDZZySk1wCFlw.html GOC playlist: ua-cam.com/play/PLCEPnTQZn9KY8thVYT3qW7HGv06Dc2GyH.html My playlist for Jee (Mains) PYQ : ua-cam.com/play/PLCEPnTQZn9KbN9Pj1edZ4LlvmKAUxOa2V.html My p...
Naturally occurring boron consists of two... @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 10День тому
Question : Naturally occurring boron consists of two isotopes whose atomic weights are 10.01 and 11.01. The atomic weight of natural boron is 10.81. Calculate the percentage of each isotope in natural boron. My YT channel :ua-cam.com/channels/_Qz9JtpjUxDZZySk1wCFlw.html GOC playlist: ua-cam.com/play/PLCEPnTQZn9KY8thVYT3qW7HGv06Dc2GyH.html My playlist for Jee (Mains) PYQ : ua-cam.com/play/PLCEPn...
Atomic weights of most of the elements are.... @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 2014 днів тому
Question : Accounts for the following. Limit your answer to two sentences, “Atomic weights of most of the elements are fractional”. My YT channel :ua-cam.com/channels/_Qz9JtpjUxDZZySk1wCFlw.html GOC playlist: ua-cam.com/play/PLCEPnTQZn9KY8thVYT3qW7HGv06Dc2GyH.html My playlist for Jee (Mains) PYQ : ua-cam.com/play/PLCEPnTQZn9KbN9Pj1edZ4LlvmKAUxOa2V.html My playlist for Jee Adv. PYQ : ua-cam.com/...
The vapour density hydrogen @thecurlychemist9953 #jeepyq #jeemains #jeeadvancedresults
Переглядів 1314 днів тому
Question : The vapour density (hydrogen = 1) of a mixture consisting of NO2 and N2O4 is 38.3 at 26.7°C. Calculate the number of moles of NO2 in 100 g of the mixture. My YT channel :ua-cam.com/channels/_Qz9JtpjUxDZZySk1wCFlw.html GOC playlist: ua-cam.com/play/PLCEPnTQZn9KY8thVYT3qW7HGv06Dc2GyH.html My playlist for Jee (Mains) PYQ : ua-cam.com/play/PLCEPnTQZn9KbN9Pj1edZ4LlvmKAUxOa2V.html My playl...
In the analysis of 0.5 g sample of feldspar.... @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 1614 днів тому
Question : In the analysis of 0.5 g sample of feldspar, a mixture of chlorides of sodium and potassium is obtained, which weighs 0.1180 g. Subsequent treatment of the mixed chlorides with silver nitrate gives 0.2451 g of silver chloride. What is the percentage of sodium oxide and potassium oxide in the sample? My YT channel :ua-cam.com/channels/_Qz9JtpjUxDZZySk1wCFlw.html GOC playlist: ua-cam.c...
5.00 mL of a gas containing only carbon and.. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 1314 днів тому
Question : 5.00 mL of a gas containing only carbon and hydrogen were mixed with an excess of oxygen (30 mL) and the mixture exploded by means of electric spark. After explosion, the volume of the mixed gases remaining was 25 mL. On adding a concentrated solution of KOH, the volume further diminished to 15 mL, the residual gas being pure oxygen. All volumes have been reduced to NTP. Calculate th...
1.0 L of a mixture of CO and CO2 is taken. This @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 2321 день тому
Question (1) :1.0 L of a mixture of CO and CO2 is taken. This mixture is passed through a tube containing red hot charcoal. The volume now becomes 1.6 L. The volumes are measured under the same conditions. Find the composition of mixture by volume. Question (2) : A compound contains 28 per cent of nitrogen and 72 per cent of a metal by weight. 3 atoms of metal combine with 2 atoms of nitrogen. ...
The density of a 3 M sodium thiosulphate..... @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 2421 день тому
The density of a 3 M sodium thiosulphate solution (Na2S2O3) is 1.25 g per mL. Calculate: (i) the percentage by weight of sodium thiosulphate (ii) the mole fraction of sodium thiosulphate and (iii) the molalities of Na and S2O3^2- ions. My YT channel :ua-cam.com/channels/_Qz9JtpjUxDZZySk1wCFlw.html GOC playlist: ua-cam.com/play/PLCEPnTQZn9KY8thVYT3qW7HGv06Dc2GyH.html My playlist for Jee (Mains) ...
An unknown compound of carbon, hydrogen and.. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 1028 днів тому
An unknown compound of carbon, hydrogen and.. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
A sugar syrup of weight 214.2 g contains 34.2 g @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 1628 днів тому
A sugar syrup of weight 214.2 g contains 34.2 g @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
n-butane is produced by monobromination of.. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 628 днів тому
n-butane is produced by monobromination of.. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
A solid mixture (5.0 g) consisting of lead @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 22Місяць тому
A solid mixture (5.0 g) consisting of lead @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Calculate the molality of 1.0 L solution of 93% @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 14Місяць тому
Calculate the molality of 1.0 L solution of 93% @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Upon mixing 45.0 mL 0.25M lead nitrate solution @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 23Місяць тому
Upon mixing 45.0 mL 0.25M lead nitrate solution @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
A is a binary compound of a univalent metal. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 27Місяць тому
A is a binary compound of a univalent metal. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
8.0575 × 10−2 kg of Glauber’s salt is dissolved @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 45Місяць тому
8.0575 × 10−2 kg of Glauber’s salt is dissolved @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
A plant virus is found to consist of uniform.. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 28Місяць тому
A plant virus is found to consist of uniform.. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Find the molarity water Given: ρ = 1000 kg/m3 @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 16Місяць тому
Find the molarity water Given: ρ = 1000 kg/m3 @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
In a solution of 100 mL 0.5 M acetic acid @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 18Місяць тому
In a solution of 100 mL 0.5 M acetic acid @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
20% surface sites have adsorbed N2. On heating. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 23Місяць тому
20% surface sites have adsorbed N2. On heating. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
29.2% (w/w ) HCl stock solution has density of @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 29Місяць тому
29.2% (w/w ) HCl stock solution has density of @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
A compound H2X with molar weight of 80 g is @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 29Місяць тому
A compound H2X with molar weight of 80 g is @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
The mole fraction of a solute in a solution.. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
Переглядів 35Місяць тому
The mole fraction of a solute in a solution.. @thecurlychemist9953 #jeepyq #jeemains #jeeadvanced
The modern atomic mass unit is based on the mass @thecurlychemist9953 #jeepyq #jeemains #neet2024
Переглядів 212 місяці тому
The modern atomic mass unit is based on the mass @thecurlychemist9953 #jeepyq #jeemains #neet2024