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madam [21]
3 years ago
14

Step 3: Measure the Reaction Rate at 40°C

Chemistry
1 answer:
Anit [1.1K]3 years ago
8 0

Answer: Temperature of the water is 40

Reaction time: 26.3

Explanation: literally just press the tongs in the workslide!

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The addition of hydrochloric acid to a silver nitrate solution precipitates silver chloride according to the reaction:
Nimfa-mama [501]

Answer:

Enthalpy change for the reaction is -67716 J/mol.

Explanation:

Number of moles of AgNO_{3} in 50.0 mL of 0.100 M of AgNO_{3}

= Number of moles of HCl in 50.0 mL of 0.100 M of HCl

= \frac{0.100}{1000}\times 50.0 moles

= 0.00500 moles

According to balanced equation, 1 mol of AgNO_{3} reacts with 1 mol of HCl to form 1 mol of AgCl.

So, 0.00500 moles of AgNO_{3} react with 0.00500 moles of HCl to form 0.00500 moles of AgCl

Total volume of solution = (50.0+50.0) mL = 100.0 mL

So, mass of solution = (100.0\times 1.00) g = 100 g

Enthalpy change for the reaction = -(heat released during reaction)/(number of moles of AgCl formed)

= \frac{-m_{solution}\times C_{solution}\times \Delta T_{solution}}{0.00500mol}

= \frac{-100g\times 4.18\frac{J}{g.^{0}\textrm{C}}\times [24.21-23.40]^{0}\textrm{C}}{0.00500mol}

= -67716 J/mol

[m = mass, c = specific heat capacity, \Delta T = change in temperature and negative sign is included as it is an exothermic reaction]

4 0
3 years ago
What is the temperature of liquid nitrogen?
motikmotik
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What is the term for an irregular way a mineral breaks apart?
kari74 [83]

Answer:

That would be fracture

Explanation:

A way that a mineral breaks apart curved at  the edges or split into uneven pieces

6 0
3 years ago
How are energy and mass connected during the formation of an atom?
Jlenok [28]
I think the right answer for this question is option A. The energy absorbed so the mass will be increased. 
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kiruha [24]

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