{"id":9104,"date":"2024-08-06T16:47:36","date_gmt":"2024-08-06T19:47:36","guid":{"rendered":"https:\/\/xequematenem.com.br\/blog\/?p=9104"},"modified":"2024-08-06T16:47:36","modified_gmt":"2024-08-06T19:47:36","slug":"questao-61-enem-ppl-2013-caderno-branco","status":"publish","type":"post","link":"https:\/\/xequematenem.com.br\/blog\/questao-61-enem-ppl-2013-caderno-branco\/","title":{"rendered":"Quest\u00e3o 061 \u2013 ENEM PPL 2013 (Caderno BRANCO)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Os dens\u00edmetros instalados nas bombas de combust\u00edvel permitem averiguar se a quantidade de \u00e1gua presente no \u00e1lcool hidratado est\u00e1 dentro das especifica\u00e7\u00f5es determinadas pela Ag\u00eancia Nacional do Petr\u00f3leo (ANP). <strong>O volume m\u00e1ximo permitido de \u00e1gua no \u00e1lcool \u00e9 de 4,9%. <\/strong>A densidade da \u00e1gua e do \u00e1lcool anidro s\u00e3o de 1,00 g\/cm<sup>3<\/sup> e 0,80 g\/cm<sup>3<\/sup>, respectivamente.<\/p>\n\n\n\n<p class=\"has-text-align-right has-small-font-size wp-block-paragraph\">Dispon\u00edvel em: http:\/\/nxt.anp.gov.br. Acesso em: 5 dez. 2011 (adaptado).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A leitura no dens\u00edmetro que corresponderia \u00e0 fra\u00e7\u00e3o m\u00e1xima permitida de \u00e1gua \u00e9 mais pr\u00f3xima de<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A) 0,20 g\/cm<sup>3<\/sup>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B) 0,81 g\/cm<sup>3<\/sup>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C) 0,90 g\/cm<sup>3<\/sup>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D) 0,99 g\/cm<sup>3<\/sup>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">E) 1,80 g\/cm<sup>3<\/sup>.<\/p>\n\n\n\n<p class=\"has-text-align-center has-large-font-size wp-block-paragraph\"><strong>Solu\u00e7\u00e3o<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Em 100 mL de \u00e1lcool hidratado, o volume m\u00e1ximo de \u00e1gua permitido \u00e9 de 4,9 mL (4,9% v\/v). Portanto, o volume de \u00e1lcool anidro \u00e9 100 mL &#8211; 4,9 mL = 95,1 mL.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O produto entre a densidade de cada um dos componentes e o respectivo volume nos fornece as massas de \u00e1gua e \u00e1lcool (m = d x V)<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"336\" height=\"85\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/08\/image-330.png\" alt=\"\" class=\"wp-image-9105 lazyload\" style=\"--smush-placeholder-width: 336px; --smush-placeholder-aspect-ratio: 336\/85;width:285px;height:auto\" title=\"\" data-srcset=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/08\/image-330.png 336w, https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/08\/image-330-300x76.png 300w\" data-sizes=\"(max-width: 336px) 100vw, 336px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A massa total da mistura \u00e9 igual a soma das massas dos componentes: 4,9 g + 76,08 g = 80,98<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para calcular a densidade da mistura, considerando o volume de 100 mL, temos que:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"267\" height=\"53\" data-src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2024\/08\/image-331.png\" alt=\"\" class=\"wp-image-9106 lazyload\" style=\"--smush-placeholder-width: 267px; --smush-placeholder-aspect-ratio: 267\/53;width:227px;height:auto\" title=\"\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">O valor encontrado \u00e9 pr\u00f3ximo de 0,81 g\/mL (1 mL = 1 cm<sup>3<\/sup>)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Alternativa B<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Os dens\u00edmetros instalados nas bombas de combust\u00edvel permitem averiguar se a quantidade de \u00e1gua presente no \u00e1lcool hidratado est\u00e1 dentro das especifica\u00e7\u00f5es determinadas pela Ag\u00eancia Nacional do Petr\u00f3leo (ANP). O volume m\u00e1ximo permitido de \u00e1gua no \u00e1lcool \u00e9 de 4,9%. A densidade da \u00e1gua e do \u00e1lcool anidro s\u00e3o de 1,00 g\/cm3 e 0,80 g\/cm3, [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[87,92],"tags":[],"area-do-conhecimento":[116,120],"assunto":[],"class_list":["post-9104","post","type-post","status-publish","format-standard","hentry","category-questoes-ppl","category-2013-questoes-ppl","area-do-conhecimento-ciencias-da-natureza-e-suas-tecnologias","area-do-conhecimento-quimica"],"_links":{"self":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/9104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/comments?post=9104"}],"version-history":[{"count":1,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/9104\/revisions"}],"predecessor-version":[{"id":9107,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/9104\/revisions\/9107"}],"wp:attachment":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/media?parent=9104"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/categories?post=9104"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/tags?post=9104"},{"taxonomy":"area-do-conhecimento","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/area-do-conhecimento?post=9104"},{"taxonomy":"assunto","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/assunto?post=9104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}