mass = 177 x 1.0 g/mL= 177 g mass ethanol = 177 x 10.6/100 = 18.8 g moles = 18.8 g/46.069 g/mol = 0.408 1367 kJ/mol x 0.408 mol= 557.9 kJ
1. H2O- The water completely dissolved the salt.
Alcohol- The alcohol dissolved the salt slightly.
Glycerin-The salt has not dissolved at all.
2. Water
3. Like dissolve like basically works on the principle of polarity. It means the substances which possess similar chemical properties may dissolve in each other. For example, ethanol can be dissolved in water because both are polar in nature whereas non-polar molecules can be dissolved in non-polar solvents only.
4. Generally, a solute dissolves faster in a warmer solvent than it does in a cooler solvent because particles have more energy of movement. For example, if you add the same amount of sugar to a cup of hot tea and a cup of iced tea, the sugar will dissolve faster in the hot tea.
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Weight on mars= weight on earth/ 9.81 m/s * 3.711 m/s^2 = 0.38 kg
The coals or wood embers that are used in fire walking have a low heat capacity. Sweat produced on the bottom of people's feet also helps form a protective water vapor. All of this together makes it possible, if moving quickly enough, to walk across hot coals without getting burned.
The sufficient conditions are given by <u>Plato</u> with definition of knowledge does Edmund Gettier.
<h3><u>Explanation:</u> </h3>
Edmund Gettier published a 3-page paper which challenged the definition of knowledge which has been defined and accepted since Plato. According to Plato, to have knowledge of something the following conditions must be met: justification, truth and belief.
This means that “justified true belief” also referred to as JTB defines knowledge of a claim. Gettier’s paper challenged this definition by presenting two examples which disproved the long-accepted definition of knowledge. One example showed that there are cases where one can have a justified true belief about something or claim without actually having knowledge of the same claim.