收藏
下载资源 加入VIP,免费下载

2018年中考化学真题分类汇编3化学实验与探究考点15化学实验常用仪器和基本操作3综合实验4误差分析（无答案）.doc

上传人：dealItalian200 文档编号：1130010 上传时间：2019-05-08 格式：DOC 页数：1 大小：20.50KB
下载 相关 举报
2018年中考化学真题分类汇编3化学实验与探究考点15化学实验常用仪器和基本操作3综合实验4误差分析（无答案）.doc_第1页
第1页 / 共1页
亲，该文档总共1页，全部预览完了，如果喜欢就下载吧！
资源描述

1化学实验常用仪器和基本操作（18 达州）16.误差分析是定量实验的一个重要内容，下列分析正确的是A.用量筒量取 10mL 水，仰视读数，会导致水的实际体积偏小B.测定溶液的 pH，先用水将 pH 试纸润湿，会导致测出的 pH 偏大C.测定空气中氧气的体积分数，铜粉的量不足，会导致测出氧气的体积分数偏小D.配制 6%的氯化钠溶液，氯化钠中含有杂质，会导致氯化钠的质量分数偏大

展开阅读全文
相关资源
猜你喜欢
  • DIN EN 60674-1-1999 Specification for plastic films for electrical purposes - Part 1 Definitions and general requirements (IEC 60674-1 1980) German version EN 60674-1 1998《电工用塑料薄膜的.pdf DIN EN 60674-1-1999 Specification for plastic films for electrical purposes - Part 1 Definitions and general requirements (IEC 60674-1 1980) German version EN 60674-1 1998《电工用塑料薄膜的.pdf
  • DIN EN 60674-3-1-2012 Plastic films for electrical purposes - Part 3 Specifications for individual materials - Sheet 1 Biaxially oriented polypropylene (PP) film for capacitors (IE.pdf DIN EN 60674-3-1-2012 Plastic films for electrical purposes - Part 3 Specifications for individual materials - Sheet 1 Biaxially oriented polypropylene (PP) film for capacitors (IE.pdf
  • DIN EN 60674-3-2-1999 Specification for plastic films for electrical purposes - Part 3 Specifications for individual materials Sheet 2 Requirements for balanced biaxially oriented .pdf DIN EN 60674-3-2-1999 Specification for plastic films for electrical purposes - Part 3 Specifications for individual materials Sheet 2 Requirements for balanced biaxially oriented .pdf
  • DIN EN 60674-3-3-1999 Specification for plastic films for electrical purposes - Part 3 Specifications for individual materials Sheet 3 Requirements for polycarbonate (PC) films use.pdf DIN EN 60674-3-3-1999 Specification for plastic films for electrical purposes - Part 3 Specifications for individual materials Sheet 3 Requirements for polycarbonate (PC) films use.pdf
  • DIN EN 60674-3-4 bis 6-1999 Specification for plastic films for electrical purposes - Part 3 Specifications for individual materials Sheets 4 to 6 Requirements for polyimide films .pdf DIN EN 60674-3-4 bis 6-1999 Specification for plastic films for electrical purposes - Part 3 Specifications for individual materials Sheets 4 to 6 Requirements for polyimide films .pdf
  • DIN EN 60674-3-7-1999 Specification for plastic films for electrical purposes - Part 3 Specifications for individual materials Sheet 7 Requirements for fluoroethylene-propylene (FE.pdf DIN EN 60674-3-7-1999 Specification for plastic films for electrical purposes - Part 3 Specifications for individual materials Sheet 7 Requirements for fluoroethylene-propylene (FE.pdf
  • DIN EN 60675 A1-1999 Household electric direct-acting room heaters - Methods for measuring performance (IEC 60675 1994 A1 1998) German version EN 60675 1995 A1 1998《家用的电直接工作的房间加热器 .pdf DIN EN 60675 A1-1999 Household electric direct-acting room heaters - Methods for measuring performance (IEC 60675 1994 A1 1998) German version EN 60675 1995 A1 1998《家用的电直接工作的房间加热器 .pdf
  • DIN EN 60675-1996 Household electric direct-acting room heaters - Methods for measuring performance (IEC 60675 1994) German version EN 60675 1995《家用的电直接工作的房间加热器 性能测定方法》.pdf DIN EN 60675-1996 Household electric direct-acting room heaters - Methods for measuring performance (IEC 60675 1994) German version EN 60675 1995《家用的电直接工作的房间加热器 性能测定方法》.pdf
  • DIN EN 60676-2012 Industrial electroheating equipment - Test methods for direct arc furnaces (IEC 60676 2011) German version EN 60676 2012《工业电加热设备 直接电弧炉试验方法(IEC 60676-2011) 德文版本EN .pdf DIN EN 60676-2012 Industrial electroheating equipment - Test methods for direct arc furnaces (IEC 60676 2011) German version EN 60676 2012《工业电加热设备 直接电弧炉试验方法(IEC 60676-2011) 德文版本EN .pdf
    • 相关搜索

    当前位置：首页 > 考试资料 > 中学考试

    copyright@ 2008-2019 麦多课文库（www.mydoc123.com）网站版权所有
    备案/许可证编号：苏ICP备17064731号-1