gen cyanide, HCN, is a poisonous gas. The lethal dose is ximately 330 mg mg HCN per kilogram of air when d Part A Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 12 x 14 x 8.0ft. The density of air at 20°C is 0.00118g/cm Express your answer using two significant figures. IVE ΑΣΦΑ m. Submit Previous Answers Request Answer X Incorrect, Try Again; 4 attempts remaining Part B the HCN is formed by reaction of NaCN with an acid such as H₂SO,, what mass of NaCN gives the lethal dose in the room 2NaCN(a)+ H₂SO,(og)-+Na, 80,(aq) + 2HCN() Express your answer using two significant figures. ma K VAX 4
gen cyanide, HCN, is a poisonous gas. The lethal dose is ximately 330 mg mg HCN per kilogram of air when d Part A Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 12 x 14 x 8.0ft. The density of air at 20°C is 0.00118g/cm Express your answer using two significant figures. IVE ΑΣΦΑ m. Submit Previous Answers Request Answer X Incorrect, Try Again; 4 attempts remaining Part B the HCN is formed by reaction of NaCN with an acid such as H₂SO,, what mass of NaCN gives the lethal dose in the room 2NaCN(a)+ H₂SO,(og)-+Na, 80,(aq) + 2HCN() Express your answer using two significant figures. ma K VAX 4
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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![### Hydrogen Cyanide Toxicity Calculation
#### Problem Context
Hydrogen cyanide (HCN) is a poisonous gas. The lethal dose is approximately **330 mg HCN per kilogram of air** when inhaled.
#### Part A
**Question:**
Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring **12 x 14 x 8 ft**. The density of air at 25°C is **0.00118 g/cm³**.
**Instructions:**
Express your answer using two significant figures.
**Answer Submission Section:**
- Input field for answer (m = ___ g)
- Submit button
- Previous Answer, Request Answer buttons
- Feedback showing an incorrect attempt with 4 remaining attempts:
- "Incorrect; Try Again: 4 attempts remaining"
#### Part B
**Question:**
If HCN is formed by reaction of NaCN with an acid such as H₂SO₄, what mass of NaCN gives the lethal dose in the room? The reaction is:
\[ 2NaCN_{(s)} + H₂SO₄_{(aq)} → Na₂SO₄_{(aq)} + 2HCN_{(g)} \]
**Instructions:**
Express your answer using two significant figures.
**Answer Submission Section:**
- Input field for answer (m = ___ g)
- Submit button
- Request Answer button
### Additional Notes:
1. **Units Conversion:**
- Convert room dimensions from feet to centimeters.
- Convert air density from g/cm³ to lb/ft³ if necessary.
2. **Lethal Dose Calculation:**
- Calculate the room volume.
- Determine the mass of air in the room.
- Use the given lethal dose to find the required mass of HCN.
3. **Stoichiometry:**
- Use the balanced chemical reaction to determine the mass of NaCN needed to produce the calculated mass of HCN.
### Graphs and Diagrams
There are no graphs or diagrams included in this problem set.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fac4ecf6d-2ca9-4d7a-9411-ad5c7f2c67b6%2Fa67d1e6b-cd5b-4530-9957-0db5742e115d%2F1gsnol_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Hydrogen Cyanide Toxicity Calculation
#### Problem Context
Hydrogen cyanide (HCN) is a poisonous gas. The lethal dose is approximately **330 mg HCN per kilogram of air** when inhaled.
#### Part A
**Question:**
Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring **12 x 14 x 8 ft**. The density of air at 25°C is **0.00118 g/cm³**.
**Instructions:**
Express your answer using two significant figures.
**Answer Submission Section:**
- Input field for answer (m = ___ g)
- Submit button
- Previous Answer, Request Answer buttons
- Feedback showing an incorrect attempt with 4 remaining attempts:
- "Incorrect; Try Again: 4 attempts remaining"
#### Part B
**Question:**
If HCN is formed by reaction of NaCN with an acid such as H₂SO₄, what mass of NaCN gives the lethal dose in the room? The reaction is:
\[ 2NaCN_{(s)} + H₂SO₄_{(aq)} → Na₂SO₄_{(aq)} + 2HCN_{(g)} \]
**Instructions:**
Express your answer using two significant figures.
**Answer Submission Section:**
- Input field for answer (m = ___ g)
- Submit button
- Request Answer button
### Additional Notes:
1. **Units Conversion:**
- Convert room dimensions from feet to centimeters.
- Convert air density from g/cm³ to lb/ft³ if necessary.
2. **Lethal Dose Calculation:**
- Calculate the room volume.
- Determine the mass of air in the room.
- Use the given lethal dose to find the required mass of HCN.
3. **Stoichiometry:**
- Use the balanced chemical reaction to determine the mass of NaCN needed to produce the calculated mass of HCN.
### Graphs and Diagrams
There are no graphs or diagrams included in this problem set.
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