Datalogging Experiment (4) Acid-base Titration using Method of Double Indicators Student Handout Purposes To determine the composition of the following mixture by double indicator method: 1. NaOH(aq) and Na2CO3(aq) 2. NaHCO3(aq) and Na2CO3(aq) Introduction Consider a mixture of NaOH(aq) and Na2CO3(aq). Reaction between HCl(aq) and Na2CO3(aq) takes place in two stages: HCl(aq) + Na2CO3(aq) ⎯→ NaHCO3(aq) + H2O(l) …………………. (1) HCl(aq) + NaHCO3(aq) ⎯→ NaCl(aq) + CO2(g) + H2O(l) …………. (2) While
Free PH indicator Titration PH
Chemistry Experiment Double Indicator Titration 1 Aim The purpose of this experiment is to find the composition of a sample of sodium carbonate mixture by titration. Introduction The reaction between sodium carbonate and hydrochloric acid occurs in 2 stages‚ with the formation of hydrogen carbonate ion as the intermediate product. Na2CO3(aq) + HCl [pic] NaHCO3(aq) + NaCl(aq) NaHCO3(aq) + HCl(aq) [pic] NaCl(aq) + H2O(l) + CO2(g) [pic] Requirements Hydrochloric
Free Titration Laboratory glassware PH indicator
Journal 3 – Double Indemnity (7-14) “That’s all it takes‚ one drop of fear‚ to curdle love into hate” (Cain 54) – As soon as he set his eyes upon Mrs. Nirdlinger‚ Walter was in love. Both Walter and Phyllis may have an evident lust for money‚ but Walter’s infatuation with Phyllis’s being definitely encouraged his violent actions. It is interesting that Walter is already coming to realize this. Walter realizes what he has been lured in to and is trying to put some blame on Mrs. Nirdlinger’s sex appeal
Premium Murder KILL
This article has been accepted for publication in a future issue of this journal‚ but has not been fully edited. Content may change prior to final publication. IEEE TRANSACTIONS ON DEPEDABLE AND SECURE COMPUTING DoubleGuard: Detecting Intrusions In Multi-tier Web Applications Meixing Le George Mason University Angelos Stavrou George Mason University Brent ByungHoon Kang George Mason University Abstract—Internet services and applications have become an inextricable part of daily life‚ enabling
Premium Web server World Wide Web Website
Every team needs a coach they can count on. I joined my school’s Academic Challenge team‚ a program similar to a team-based Jeopardy! game‚ in middle school. Each week‚ we counted on our coach coming and running practices every Thursday. Eventually‚ the tables would turn and I would be the one the students were depending on. We stopped the middle school team after my freshmen year due to time constraints with our coach becoming a full-time teacher. It wasn’t until the end of my junior year that
Premium High school College School
The 5th Amendment under the constitution protects offenders against the double jeopardy‚ it prohibits and offender from being tried for the same offense twice. “the Fifth Amendment’s protection against double jeopardy protects the accused from being prosecuted more than once for the same crime.” (Wright‚ 2013‚ Section 13.1) For example‚ if there were an acquittal in a case determined by a judge an offender was being charged for murder‚ and new evidence has been found the offender can’t tried for
Premium Crime Criminal law Law
Chapter 2 THE SYNTAX AND SEMANTICS OF DETRANSITIVE VERBS THE PREPOSITIONAL DATIVE CONSTRUCTION AND THE DOUBLE OBJECT CONSTRUCTION 0.1. Introduction The de-transitive verbs we are concerned with in this chapter are verbs of the type give‚ send‚ promise‚ bring‚ etc.‚ which take two internal objects realized either as a DP ^ PP sequence or as a DP ^ DP sequence: (1) a. Sue gave a book to Bill b. Sue gave Bill a book The construction illustrated in (1a) is called the to-dative construction
Premium Verb Syntax Subject
Are men and women held to different standards of sexual conduct? In Derek Kreager and Jeremy Staff’s Article‚ The Sexual Double Standard of Adolescent Peer Acceptance‚ they look further into the sexual double standards that are held by male and female adolescents whether or not there is a sexual double standard for male and female adolescents. They define sexual double standard‚ “boys and men are thought to receive praise and positive attributions for nonmarital sexual contacts‚ while girls and women
Premium Gender Human sexual behavior Sexual intercourse
A Humble and Shallow Review of The Double Helix: A Personal Account of the Discovery of the Structure of DNA by James D Watson As a piece of book review as regards the book The Double Helix: A Personal Account of the Discovery of the Structure of DNA‚ written by James D. Walter in an autobiographic tone‚ this paper aims at offering a preliminary glimpse of the nature of scientific discovery and the constraints of scientific specialization as well as women’s role in science. Just like James Watson
Premium DNA James D. Watson Francis Crick
In these last books of The Odyssey there is a theme of double standards‚ Odysseus is able to get away with anything. In the beginning of these books Penelope finally decides to pick a suitor to marry even though she does not really want to do this‚ she even prays for her own death. Her method of choosing a competition: whoever can string and shot Odysseus’ bow‚ that only he is strong enough to shoot‚ through twelve axes wins her hand in marriage. When Odysseus goes to tell her his story‚ still disguised
Premium KILL Macbeth Three Witches