Explanation:
Moles of compound =
We have ;
Volume of solution = 600 mL = 0.600 L ( 1 mL = 0.001 L)
Moles of NaOH = n
Molarity of the solution = 3 M
n = 3 M × 0.600 L = 1.800 mol
Mass of 1.800 mole sof NaOH :
1.800 mol × 40 g/mol = 72.0 g
Preparation:
Weight 72.0 grams of sodium hydroxide and add it to the 500 mL of volumetric flask along with some water. Dissolve the all the solute by adding small proportion of water. After the solution becomes clear make the water upto the mark of 500 ml.
Transfer the solution to a bigger beaker and 100 mL of water more to it.
The colour of a substance determines the way it reacts when light rays are incident on it. When light rays strike a dark object, the dark object will absorb all the wavelengths of the light and convert them to heat energy, thereby increasing its temperature. Lighter colors do not absorb all the wavelengths of light, they reflected some depending on the type of color.
Answer:
Cl₂ < CH₃Cl < CH₃COOH < NaCl
Explanation:
<em>Part A. List the substances NaCl, Cl₂, CH₃Cl, and CH₃COOH in order of increasing strength of intermolecular attractions.</em>
<em />
NaCl. Na⁺ is bonded to Cl⁻ through a ionic bonding. In the crystalline reticle, unit formulas attract each other through ion-ion forces, which are the strongest type of forces.
Acetic acid (CH₃COOH) has H atoms bonded to more electronegative O atoms. This leads to the formation of hydrogen bondings, which constitute an especially strong case of dipole-dipole forces.
Chloromethane (CH₃Cl) is a polar molecule due to the asymmetrical distribution of charge density. The resulting intermolecular attractions are dipole-dipole forces.
Cl₂ is nonpolar and it has the weakest type of intermolecular attractions, dispersion forces.
The order of increasing strength is Cl₂ < CH₃Cl < CH₃COOH < NaCl
Answer:
<h2>
Incomplete combustion </h2>
Explanation:
CH4 + 2O2 → CO2 + 2H2O Incomplete combustion – carbon monoxide and water.
<h2>combustion reactions
</h2>
Exothermic Reaction In this type of reaction, generally energy in form of heat is released. CH4 + 2O2---- CO2 + 2H2O + energy Methane Oxygen Carbon dioxide For example all combustion reactions are exothermic.
