During lab, you need 5.0 mL of a copper reagent but you accidentally pour out 8.0 mL. What should you do with the excess copper reagent?

Question

During lab, you need 5.0 mL of a copper reagent but you accidentally pour out 8.0 mL.  What should you do with the excess copper reagent?

BlackTom AI · Accepted Answer

Safety first in the lab, especially with chemical reagents. Consider each option in turn to see which aligns with standard lab waste disposal practices.
Option 1: 'Return it to the copper reagent bottle' This would contaminate the main reagent stock and potentially introduce impurities or contaminants into the bottle. Re-adding spilled material can create inappropriate concentrations and poses a safety and quality control issue. In general, once a chemical has been removed from its original closed container and exposed to the environment or other materials, it should not be returned to the bottle.
Option 2: 'Pour it into the "copper reagent" waste container' This aligns with common lab protocols: any excess or spilled reagent that cannot be saved for future use should be disposed of in the appropriate waste container designated for that chemical class. Using the proper waste container helps ensure safe disposal and prevents cross-contamination or chemical reactions with other waste streams.
Option 3: 'Pour it down the drain' This is typically incorrect unless the chemical is explicitly labeled as a safe-to-flush substance and permitted by the facility’s disposal guidelines. Many reagents, including copper compounds, can be hazardous to aquatic life or incompatible with sewer systems, and flushing them is generally prohibited.
Option 4: 'Sell it on Amazon' This is plainly inappropriate and unsafe: handling, selling, or distributing lab reagents outside of controlled, approved channels can violate safety regulations, sourcing requirements, and licensing, and poses significant risk.
In terms of underlying principles, the correct approach relies on using designated waste streams for chemical disposal, maintaining purity and safety of the stock solutions, and avoiding improper disposal methods that could cause environmental harm or regulatory trouble. The other options either risk contaminating the stock, create unsafe disposal pathways, or violate ethical and legal standards for chemical handling.

CHEM 105-A09C Prelab 1: safety and preparing for the first lab

During lab, you need 5.0 mL of a copper reagent but you accidentally pour out 8.0 mL. What should you do with the excess copper reagent?

查看解析

登录即可查看完整答案

类似问题

Which of the following guidelines for handling waste are given in the text?

Which of the following chemicals should never be disposed of in the sink?

When should a student request a replacement liquid hazardous waste bottle for the lab?

How should you dispose of paper towels, weigh paper, or glove contaminated with trace amounts of hazardous chemical(s)?

Which reaction products can be disposed of by rinsing them down the drain?

Where should you dispose of waste after an experiment in the laboratory?

实验室内应处理的化学品在实验室废弃化学品时，

What do you do with your unused chemicals at the end of lab?

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单

CHEM 105-A09C Prelab 1: safety and preparing for the first lab

During lab, you need 5.0 mL of a copper reagent but you accidentally pour out 8.0 mL. What should you do with the excess copper reagent?

查看解析

登录即可查看完整答案

类似问题

Which of the following guidelines for handling waste are given in the text?

Which of the following chemicals should never be disposed of in the sink?

When should a student request a replacement liquid hazardous waste bottle for the lab?

How should you dispose of paper towels, weigh paper, or glove contaminated with trace amounts of hazardous chemical(s)?

Which reaction products can be disposed of by rinsing them down the drain?

Where should you dispose of waste after an experiment in the laboratory?

实验室内应处理的化学品 在实验室废弃化学品时，

What do you do with your unused chemicals at the end of lab?

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单

实验室内应处理的化学品在实验室废弃化学品时，