Question
Asked Oct 16, 2019
3 views
1. When 2.00 grams of solid sodium hydroxide dissolves in 100.0 ml of water in a
coffee-cup calorimeter, the temperature rises from 21.6°C to 29.7°C. Calculate
the AH (in cal/mol NaOH) for the solution process
Na (aq) OH(aq)
>
NaOH(s)
The specific heat of solution is 0.940 cal/(g °C)
Atomic mass of Na 23.0 g/mol; O 16.0 g/mol, and H 1.01 g/mol.
help_outline

Image Transcriptionclose

1. When 2.00 grams of solid sodium hydroxide dissolves in 100.0 ml of water in a coffee-cup calorimeter, the temperature rises from 21.6°C to 29.7°C. Calculate the AH (in cal/mol NaOH) for the solution process Na (aq) OH(aq) > NaOH(s) The specific heat of solution is 0.940 cal/(g °C) Atomic mass of Na 23.0 g/mol; O 16.0 g/mol, and H 1.01 g/mol.

fullscreen
check_circle

Expert Answer

Step 1
help_outline

Image Transcriptionclose

The Naoule)- Nla Caq) + O Cag) ienrentioo Tt u asumed tnat t deusity watu is a/mL watu is omd tue mass looad Tius the mass NaoH is '00am

fullscreen
Step 2
help_outline

Image Transcriptionclose

The total uais solutuoo NAOH+ wass Mass lo2

fullscreen
Step 3
help_outline

Image Transcriptionclose

0.140 calfC 21 6 C Gpecifie heat solutioo 2.1C T2 FR

fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.

Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: How could you differentiate between sodium chloride (table salt) and sodium iodide, a poison?

A: Using the color difference of silver halide and solubility, sodium chloride can be distinguished fro...

question_answer

Q: 1) List 3 possible reasons why you might not observe a reaction even though the activity sreies indi...

A: Reactivity series is the series of metals placed according to their reactivity from highest to the l...

question_answer

Q: A 20-gram piece of copper (c = 0.385 J/g degrees celsius) at 115 degrees Celsius is placed in contac...

A: The formula for specific heat can be written below in which q represents the heat energy in Joules, ...

question_answer

Q: Are "R-values" considered exact? In other words, do we consider their number of significant figures?...

A: Ideal gas law equation is given by PV=nRT.  The R-value are given by

question_answer

Q: To precipitate all of the Pb2+ cations found in an 27.8 ml solution of .673 molarity Pb(NO3)2 you wi...

A: The number of moles refers to the ratio of mass to the molar mass of a given chemical substance. The...

question_answer

Q: I dont understand what they are asking me ice tried different answers and the continue to be wrong

A: Given, green spheres represent Chlorine atoms, yellow-green spheres represent Fluorine atoms and whi...

question_answer

Q: What is the mass percent of water in magnesium chloride hexahydrate?

A: Molecular formula of Magnesium chloride hexahydrate = MgCl2.6H2OFormula to calculate % of water:    ...

question_answer

Q: Which of the following characterizes a gamma ray? Choose all that apply is very-high-energy similar ...

A: Gamma rays are less penetrating than a beta-ray is incorrect and gamma rays are unaffected in an ele...

question_answer

Q: How many grams of HC2H3O2 are there in 3.6 moles of HC2H3O2?

A: The Mass (in grams) of HC2H3O2 in 3.6 moles of HC2H3O2 is to be calculated.