{"id":77,"date":"2016-03-22T00:52:00","date_gmt":"2016-03-22T00:52:00","guid":{"rendered":"https:\/\/rijankc.com.np\/2016\/03\/22\/1-1-symbol\/"},"modified":"2024-11-02T19:25:44","modified_gmt":"2024-11-02T13:40:44","slug":"1-1-symbol","status":"publish","type":"post","link":"https:\/\/rijankc.com.np\/?p=77","title":{"rendered":"1.1 Symbol"},"content":{"rendered":"
Symbol:<\/b>
\nSymbol is the abbreviation which is given to represent full name for elements.
\nEg.<\/p>\n\n\n\n
\n
Hydrogen \u2013 H<\/span><\/div>\n
Sodium \u2013 Na<\/span><\/div>\n
Gold – Au<\/span><\/div>\n<\/td>\n
\n
Carbon \u2013 C<\/span><\/div>\n
Calcium \u2013 Ca<\/span><\/div>\n
Cadium \u2013 Cd<\/span><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Significance of Symbol:<\/b><\/div>\n
A symbol has qualitative as well as quantitative significance.<\/div>\n
<\/div>\n
\n

Qualitative Significance:<\/p>\n

<\/a><\/div>\n<\/div>\n
1. Qualitatively symbol helps us to know the name of element.<\/div>\n
<\/div>\n
Quantitative Significance:<\/div>\n
1. Quantitatively symbol of an element represents an atom of that element.<\/div>\n
<\/div>\n
Molecular Formula:<\/b><\/div>\n
The symbolic representation of a molecule of substance is called molecular formula. Molecular formula shows the exact number and types of atoms present in a molecule.<\/div>\n
Eg.<\/div>\n
Calcium \u00a0Carbonate \u2014 CaCO3<\/sub><\/div>\n
Hydrogen \u2014 H2<\/sub><\/div>\n
Water \u2014 H2<\/sub>O<\/div>\n
<\/div>\n
Significance of Molecular Formula<\/b><\/div>\n
A molecular formula has qualitative as well as quantitative significance.Qualitative Significance:
\n1. Qualitatively molecular formula helps us to know the name of substance.
\n2. Molecular formula also helps us to know the name of elements present in a compoundQuantitative Significance:
\n1. Quantitatively molecular formula helps us to know molecular weight and gram molecular weight.
\n2. It also helps us to know valency of different elements.
\n3. It helps us to know the combining ratio of different elements.<\/p>\n

Q. What information do you obtain from the molecular formula H2<\/sub>O?<\/i>
\nQualitative Significance:
\n1. Qualitatively molecular formula H2<\/sub>O indicates water.
\n2. Molecular formula H2<\/sub>O represents that hydrogen and oxygen are present in water.<\/p>\n

Quantitative Significance:
\n1. Quantitatively molecular formula H2<\/sub>O helps us to know molecular weight of water is 18 and 18 gm water is one gram molecular weight of water.
\n2. In water, valency of hydrogen is 1 and valency of oxygen is 2.
\n3. In water combining ratio of Hydrogen and oxygen is 1:8 by weight and 2:1 by volume.<\/p>\n

 <\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Symbol: Symbol is the abbreviation which is given to represent full name for elements. Eg. Hydrogen \u2013 H Sodium \u2013 Na Gold – Au Carbon \u2013 C Calcium \u2013 Ca Cadium \u2013 Cd Significance of Symbol: A symbol has qualitative as well as quantitative significance. Qualitative Significance: 1. Qualitatively symbol helps us to know the […]<\/p>\n","protected":false},"author":1,"featured_media":693,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[110],"tags":[],"class_list":["post-77","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chemistry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/rijankc.com.np\/index.php?rest_route=\/wp\/v2\/posts\/77","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rijankc.com.np\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rijankc.com.np\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rijankc.com.np\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rijankc.com.np\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=77"}],"version-history":[{"count":2,"href":"https:\/\/rijankc.com.np\/index.php?rest_route=\/wp\/v2\/posts\/77\/revisions"}],"predecessor-version":[{"id":694,"href":"https:\/\/rijankc.com.np\/index.php?rest_route=\/wp\/v2\/posts\/77\/revisions\/694"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rijankc.com.np\/index.php?rest_route=\/wp\/v2\/media\/693"}],"wp:attachment":[{"href":"https:\/\/rijankc.com.np\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=77"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rijankc.com.np\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=77"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rijankc.com.np\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=77"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}