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Shaneylee18
Shaneylee18
@shaneylee18
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Joined: Sep 21, 2020
Last seen: Jul 19, 2023
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Topics: 2184 / Replies: 0
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Topic
A solution is prepared by dissolving 24.5 g of sodium hydroxide in distilled water to give 1 L solution.
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 416
Topic
The reaction of calcium with water is represented by the equation
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 156
Topic
During electrolysis of water the volume of O2 liberated is 2.24 dm^3. The volume of hydrogen liberated, under same conditions will be
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 228
Topic
The weight of one molecule of a compound of molecular formula C60H122 is
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 145
Topic
The normality of orthophosphoric acid having purity of 70 % by weight and specific gravity 1.54 is:
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 153
Topic
The molarity of H2SO4 solution, which has a density 1.84 g/cc. at 35° C and contains 98% by weight, is :
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 200
Topic
Temperature does not affect :
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 187
Topic
The weight of NaCl decomposed by 4.9g of H2SO4, if 6 g of sodium hydrogen sulphate and 1.825 g of HCl
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 865
Topic
10^21 molecules are removed from 200 mg of CO2. The moles of CO2 left are :
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 139
Topic
0.4 moles of HCl and 0.2 moles of CaCl2 were dissolved in water to have 500 mL of solution, the molarity of Cl^- ion is:
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 167
Topic
The empirical formula of a compound is CH2O. Its molecular weight is 180. The molecular formula of compound is :
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 159
Topic
The normality of solution obtained by mixing 10 ml of N/5 HCI and 30 ml of N/10 HCl is :
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 231
Topic
The molar concentration of 20 g of NaOH present in 5 litre of solution is :
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 253
Topic
60 gm of an organic compound on analysis is found to have C = 24 g, H = 4 g and O = 32 g.
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 147
Topic
The oxide of an element contains 67.67% oxygen and the vapour density of its volatile chloride is 79.
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 444
Topic
Volume of a gas at NTP is 1.12 x 10^-7 cc. The number of molecule in it is :
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 173
Topic
The weight of a single atom of oxygen is :
5 years ago
Forum
Some Basic Concepts of Chemistry
Replies: 0
Views: 131
Topic
Assertion: Eutrophication shows increase in productivity in water.
5 years ago
Forum
Ecology and Environment
Replies: 0
Views: 244
Topic
Assertion: Methane, component of green house gases, contributing to global warming is about 20 percent.
5 years ago
Forum
Ecology and Environment
Replies: 0
Views: 213
Topic
Assertion: Water pollutants are measured by BOD. Reason: If BOD is more, the water is polluted.
5 years ago
Forum
Ecology and Environment
Replies: 1
Views: 215
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