{"id":110,"date":"2015-11-30T12:31:00","date_gmt":"2015-11-30T12:31:00","guid":{"rendered":"https:\/\/rijankc.com.np\/2015\/11\/30\/07-equivalent-weight\/"},"modified":"2024-11-02T19:41:53","modified_gmt":"2024-11-02T13:56:53","slug":"07-equivalent-weight","status":"publish","type":"post","link":"https:\/\/rijankc.com.np\/?p=110","title":{"rendered":"07 Equivalent Weight"},"content":{"rendered":"
STP or NTP
\nPressure = 760 mmHg = 1 atm
\nT = 273K = 0\u00b0c
\n100ml = 1000cc = 1 LitreAt STP 1 ml or 1 cc of hydrogen = 0.000089 gm
\nAtomic Weight = Equivalent Weight \u00d7 Valency<\/p>\n
<\/a><\/div>\n

 <\/p>\n

 <\/p>\n

In oxide formation method:<\/p>\n

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 <\/p>\n

 <\/p>\n

In Hydrogen Displacement Method:<\/p>\n

<\/a><\/div>\n

 <\/p>\n

 <\/p>\n

In Chlorine Formation Method:<\/p>\n

<\/a><\/div>\n

 <\/p>\n

 <\/p>\n

Q.\u00a0 0.212 gram of magnesium when dissolve in hydrochloric acid and the volume of hydrogen collected over water at 16\u00b0c and 750mmHg pressure was 213.5ml. Calculate the equivalent weight of metal.<\/b><\/i><\/p>\n

Solution:
\nWeight<\/b><\/i> of metal = 0.212 gm
\nFor Hydrogen,
\nTemperature (T1<\/sub>) =16\u00b0c = (16 + 273)K = 289 K
\nPressure (P1<\/sub>) = 750 mmHg
\nVolume(V1<\/sub>) =\u00a0 213.5ml
\nAt STP, Temperature (T2<\/sub>) = 273K
\nPressure (P2<\/sub>) = 760mmHg
\nVolume (V2<\/sub>) = ?
\nBy using combined gas equation,<\/p>\n

<\/a><\/div>\n
<\/div>\n

Again, at STP or NTP
\n1 ml or 1 cc of hydrogen = 0.000089gm
\n199.026ml of hydrogen = 0.000089\u00d7199.026gm
\n= 0.0177gm<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

STP or NTP Pressure = 760 mmHg = 1 atm T = 273K = 0\u00b0c 100ml = 1000cc = 1 LitreAt STP 1 ml or 1 cc of hydrogen = 0.000089 gm Atomic Weight = Equivalent Weight \u00d7 Valency     In oxide formation method:     In Hydrogen Displacement Method:     In Chlorine […]<\/p>\n","protected":false},"author":1,"featured_media":699,"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-110","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\/110","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=110"}],"version-history":[{"count":1,"href":"https:\/\/rijankc.com.np\/index.php?rest_route=\/wp\/v2\/posts\/110\/revisions"}],"predecessor-version":[{"id":674,"href":"https:\/\/rijankc.com.np\/index.php?rest_route=\/wp\/v2\/posts\/110\/revisions\/674"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rijankc.com.np\/index.php?rest_route=\/wp\/v2\/media\/699"}],"wp:attachment":[{"href":"https:\/\/rijankc.com.np\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=110"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rijankc.com.np\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=110"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rijankc.com.np\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}