This topic contains a solution. Click here to go to the answer
« previous next »
Pages: 1 2 3  All   Go Down

Author Question: Calculate the mass of sodium cyanate (NaOCN, molar mass = 65.0066 g mol-1) required to lower the ... (Read 2743 times)

altibaby

  • Hero Member
  • *****
  • Posts: 562
on: Nov 18, 2019

Question 1

Calculate the mass of NH4ClO4, molar mass = 117.49 g mol-1, required to create a temperature change of -1.0 °C in a coffee cup calorimeter containing 115 mL of water. The enthalpy of solution for NH4ClO4 is 33.47 kJ mol-1. The specific heat of water is 4.184 J g-1 °C-1, and assume the density of the solution is 1.00 g mL-1.
◦ 4.0 g
◦ 0.83 g
◦ 2.8 g
◦ 1.7 g
◦ 3.2 g

Question 2

Calculate the mass of sodium cyanate (NaOCN, molar mass = 65.0066 g mol-1) required to lower the temperature from 24.1 °C to 23.0 °C in a coffee cup calorimeter containing 98 mL of water. The enthalpy of solution for NaOCN is 19.20 kJ mol-1. The specific heat of water is 4.184 J g-1 °C-1 and assume the density of the solution is 1.00 g mL-1.
◦ 3.8 g
◦ 1.5 g
◦ 4.8 g
◦ 0.75 g
◦ 1.1 g
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by altibaby on Nov 18, 2019

Koolkid240

  • Sr. Member
  • ****
  • Posts: 357
Reply #1 on: Nov 18, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 35% of students answer this correctly


Abuel Adho

  • Newbie
  • *
  • Posts: 1
Reply #2 on: Feb 3, 2020
Thank you!


Yiru Zhao

  • Newbie
  • *
  • Posts: 1
Reply #3 on: Feb 3, 2020
Thank You


just a tree

  • Newbie
  • *
  • Posts: 1
Reply #4 on: Sep 25, 2020
thank you


Jay Paws

  • Newbie
  • *
  • Posts: 1
Reply #5 on: Sep 25, 2020
Thank you!


Brennan Cowley Adam

  • Newbie
  • *
  • Posts: 1
Reply #6 on: Sep 25, 2020
Thank you


jw s

  • Newbie
  • *
  • Posts: 1
Reply #7 on: Feb 2, 2021
Thank you!


lydellson

  • Newbie
  • *
  • Posts: 1
Reply #8 on: Jun 16, 2021
thank you !


james_szy

  • Newbie
  • *
  • Posts: 2
Reply #9 on: Sep 30, 2021
thank you


Pages: 1 2 3  All   Go Up
« previous next »
 

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Replica of an Asian elephant's molar, showing upper side. Replica of an Asian elephant's molar, showing upper side.
How to calculate fuel costs How to calculate fuel costs
Table Salt Is Composed of Sodium and Chloride Table Salt Is Composed of Sodium and Chloride
Calculate the amount of interest that will be charged on $9000.00 borrowed for four months at ... Calculate the amount of interest that will be charged on $9000.00 borrowed for four months at ...
Calculate ΔS° Calculate ΔS°
Gray Morris's Calculate with Confidence, Canadian Edition, 2nd Edition Gray Morris's Calculate with Confidence, Canadian Edition, 2nd Edition
Video: Embryonic development - Weeks 5 to 8

For a complete list of videos, visit our video library