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Musya8 [376]
3 years ago
15

How much energy is required to heat 32.5 g of water from 34°C to 75°C

Chemistry
1 answer:
cluponka [151]3 years ago
5 0
<span>Q = mc (delta T)  =  32.5 x 1 x (75-34)  =  1332.5 cal</span>
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If the measured gas pressure in a collection flask during a gas-forming reaction was determined to be 1.44 atm? If the measured
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2.In a titration, 25.00 cm3 of a solution of hydrochloric acid reacted with 18.40 cm3 of sodium hydroxide solution of concentrat
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Answer:

0.11mol/dm³

Explanation:

The reaction expression is given as:

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Volume of base  = 18.4cm³ = 0.0184dm³

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Solution:

The concentration of hydrochloric acid = ?

 To solve this problem, let us first find the number of moles of the base;

 Number of moles  = concentration x volume

 Number of moles  = 0.15mol/dm³ x 0.0184dm³  = 0.00276mol

From the balanced reaction equation;

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Therefore,  0.00276mol of the base will combine with  0.00276mol of HCl

 So;

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