Essays Tagged: "molar"

Osmosis Investigation

mm· I took 3 test tubes, for the chips A, B & C· and filled each with 10cm3 of 1 molar sucrose· I then inserted the correct chip in the correct test tube,· and started ...

(3 pages) 42 1 2.7 Jan/2005

Subjects: Science Essays > Biology

An Investigation Into The Volume Of Gas Produced When You React Hydrochloric Acid And Marble Chips - Plan, Evaluation And Analysis

ips weused for both my preliminary work and my real experiment was 5.5g抯.So I used 50ml of 2 molar/dm� hydrochloric acid and 5.5g抯 of marble chips in my preliminary investigation. ... igation. This might help me understand any anomalies I might encounter.I predict that as I decrease molarity of my hydrochloric acid , my reaction will slow down resulting in less gas production. I al ...

(7 pages) 31 1 4.8 Aug/2007

Subjects: Science Essays > Chemistry

Reaction rates of Mg mixed with 2HCl

a lower concentrated there would be less reactive molecules and in turn, less collisions. When high molar hydrochloric acid is used, we will have a faster rate of reaction. When lower molar hydrochlor ... ium will bubble because gas is being released. The base, magnesium, will be neutralized If a higher molar of hydrochloric acid is used then the rate of reaction will be faster because the hydrochloric ...

(4 pages) 19 0 3.0 Sep/2007

Subjects: Science Essays > Chemistry

Fluorescence study of dyes

gion. By using a spectrophotometer we are recording an absorption spectrum and then determining the molar decadic absorption coefficients, which will be used later to interpret and analyse the fluores ... trum with a maximum at 376.5nm at an absorbance of 1.4573, using Beer-Lambert's law, we deduced the molar decadic absorption coefficients.Sodium fluorescein C = 2.425 x10-5 mol dm -3 Here max was 500. ...

(4 pages) 2174 0 0.0 Feb/2008

Subjects: Science Essays > Physics

The Value Of Being A Vegetarian

found in human teeth and large intestines show that humans are designed to be vegetarian. The flat molars are designed to grind plants and are typical for herbivores. Carnivores, on the other hand, h ... al for herbivores. Carnivores, on the other hand, have canines to rip apart flesh, and they have no molars, the intestines of carnivores are straight and short so that the meat can pass quickly before ...

(3 pages) 17 1 5.0 Apr/2008

Subjects: Humanities Essays > Language Studies > Writing

Hess's Law

Experiment B: Reaction: NaOH (aq) + HCl → NaCl (aq) + H2O (l)ΔHBWe poured 100 cm3 of 0.5 molar HCl in the thermos and measured the temperature. We then poured 100 cm3 of NaOH and measured t ... iment C:Reaction: NaOH (s) + HCl (aq) → NaCl (aq) + H2O (l) ΔHCWe poured 200 cm3 of 0.25 molar HCl in the thermos and measured the temperature. After doing so, we added 2 g of the tablet-Na ...

(4 pages) 2152 0 0.0 Sep/2008

Subjects: Science Essays > Chemistry

Fisicoquimica español

ones de un mismo compuesto se tiene una base de concentración común, la Conductividad Molar, definida por:Donde es la conductividad molar, es la conductividad y es la concentraci&oacu ... ución, de aquí se tienen a los electrolitos fuertes los cuales tienen conductividades molares altas que aumentan ligeramente cuando aumenta la disolución y los electrolitos d&eacu ...

(10 pages) 0 0 0.0 Aug/2012

Subjects: Science Essays > Engineering > Chemical Engineering

The yield from an acid-carbonate reaction

d to calculate the percentage efficiency of the reaction.Procedure:1. Accurately measure 20mls of 2 Molar HCl using a measuring cylinder. Transfer to a 100m1 conical flask.2. Weigh the flask and it's ...

(6 pages) 4 0 0.0 Mar/2013

Subjects: Science Essays > Chemistry