{"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

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

 <\/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 […]<\/p>\n","protected":false},"author":1,"featured_media":699,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"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}]}}