Butanol has a higher boiling point than
propanol,since it has a higher relative molecular mass and
and hence stronger intermolecular forces of attraction
isaacmuthini answered the question on October 6, 2017 at 12:44
- You are provided with the following :copper turning,dilute sulphuric acid and a source of heat. Describe fully how you would prepare copper (ii) sulphate crystals(Solved)
You are provided with the following :copper turning,dilute sulphuric acid and a source of heat. Describe fully how you would prepare copper (ii) sulphate crystals
Date posted: October 6, 2017. Answers (1)
- (a)Phosphorus has melting point of 40o and 590o.Explain
(B)Why is phosphorus stored under water ...(Solved)
(a)Phosphorus has melting point of 40o and 590o.Explain
(B)Why is phosphorus stored under water
Date posted: October 6, 2017. Answers (1)
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Date posted: October 5, 2017. Answers (1)
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Date posted: October 5, 2017. Answers (1)
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Date posted: October 4, 2017. Answers (1)
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Explain one way in which sulphur (IV) oxide is a pollutant
Date posted: October 4, 2017. Answers (1)
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The molar enthalpy of neutralisation between hydrochloric acid and ammonia solution was found to be -52.2 kj mol4, while that of hydrochloric acid and sodium hydroxide was 57.1 kJ mol-1. Explain the difference in these values.
Date posted: October 4, 2017. Answers (1)
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Date posted: October 4, 2017. Answers (1)
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Element M reacts with water at room temperature to produce 0.2 dm3 of gas. Determine the mass of M which was reacted with water. (Molar gas volume at room temperature is 24 dm3, Relative atomic mass of M = 7).
Date posted: October 4, 2017. Answers (1)
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A solution was made by dissolving 8.2g of calcium nitrate to give 2 litres of solution. (Ca = 40.0; N = 14.0; O = 16.0).
Determine the concentration of nitrate ions in moles per litre
Date posted: October 4, 2017. Answers (1)
- When 15cm3 of a gaseous hydrocarbon, P, was burnt in 100cm3 of oxygen, the resulting gaseous mixture occupied 70cm3 at room temperature and pressure....(Solved)
When 15cm^3 of a gaseous hydrocarbon, P, was burnt in 100cm^3 of oxygen, the resulting gaseous mixture occupied 70cm^3 at room temperature and pressure. When the gaseous mixture was passed through potassium hydroxide solution, its volume decreased to 25cm^3.
(a) What volume of oxygen was used during the reaction?
Date posted: October 4, 2017. Answers (1)
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Alloy
Use(Solved)
Name one alloy of copper and state its use.
Alloy
Use
Date posted: October 4, 2017. Answers (1)
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Date posted: October 4, 2017. Answers (1)
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A certain mass of gas occupies 146 dm^3 at 291 K and 98.31 kPa. What will be its temperature if its volume is reduced to 133 dm^3 at 101.325 kPa?
Date posted: October 4, 2017. Answers (1)
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Date posted: October 3, 2017. Answers (1)
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paper two.
Date posted: October 2, 2017. Answers (1)
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Date posted: October 2, 2017. Answers (1)
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Date posted: October 2, 2017. Answers (1)
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Give a reason why nitric (V) acid is stored in dark brown bottles.
Date posted: September 30, 2017. Answers (1)
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State one use of sodium carbonate
Date posted: September 30, 2017. Answers (1)