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How do you account for the observed solubility of naphthalene and sodium chloride in water and in ether based on the nature of the bonds that exist in them?
The reason why naphthalene can be dissolve in ether and not in water is because of their polarity. Naphthalene is a non-polar molecule. so it can only dissolve with a non-polar molecule.
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What is the function of sodium chloride?
Sodium chloride-also known as salt-is necessary to help your body maintain fluid balance, help your muscles relax and your nerves transmit signals. Sodium chloride also helps maintain normal blood pressure. One of salt's earliest roles was to preserve food (it does this by drawing out water, preventing bacteria from growing). Today, it gets a bad reputation (and deservedly so) because Americans eat too many processed foods and therefore consume more salt than necessary, which results in adverse health effects. Although they're two separate minerals, sodium and chloride are usually found together in most foods (and account for about 90 percent of sodium intake in the U.S.); for this reason, they are presented together here.
How do you account for these facts N-butyl alcohol has a much higher boiling point than its isomer di-ethyl ether yet both compounds have the same solubility in water?
n-butyl alcohol has a higher boiling point than di-ethyl ether because there is more hydrogen bonding in n-butyl alcohol which results in a higher energy needed to break the intermolecular hydrogen bonds.
What is the salt concentration of the ocean?
The ocean has a lot of salt in it, 3.5% by weight, but that is not just dissolved sodium chloride (Na+, Cl-). The dissolved sodium and chlorine atoms account for about 85% of the salt by weight. The ocean contains calcium, magnesium, sodium and potassium with bicarbonate, sulfate, chlorine and bromine. (If you remove the water, then what is left is, by weight, Cl− 55%, Na+ 30.6%, SO2−, 4 7.7%, Mg2+ 3.7%, Ca2+ 1.2%, K+ 1.1%, Other 0.7%)
What does ef mean on tornado scale?
EF on the tornado scale stands for Enhanced Fujita scale. It is used to classify tornado intensity based on the damage caused by the tornado, ranging from EF0 (weakest) to EF5 (strongest). The EF scale takes into account the strength of the wind and the type of damage observed.
Compare apparent magnitude and absolute magnitude?
Apparent magnitude is a measure of how bright a star appears from Earth, taking into account its distance and how much light it emits. Absolute magnitude, on the other hand, is a measure of a star's intrinsic brightness if it were observed from a standard distance of 10 parsecs. It helps in comparing the true brightness of stars regardless of their distance from Earth.
How do you account for the observed solubility of naphthalene and sodium chloride in water and ether based on the nature of the bonds that exist in them?
The reason why naphthalene can be dissolve in ether and not in water is because of their polarity. Naphthalene is a non-polar molecule. so it can only dissolve with a non-polar molecule.
A student found that the mass of the naphthalene collected was less than the mass determined by difference. What would account for the smaller amount of the naphthalene collected?
The naphthalene solid has a significant vapor pressure, as indicated by its strong odor. The solid naphthalene will evaporate, decreasing the mass of solid naphthalene present.m collected + m evaporated = Delta m
How many mEq of chloride are in 1 teaspoon of salt?
There are approximately 1,292 mg of chloride in 1 teaspoon of table salt. Converting this to milliequivalents (mEq), which takes into account the valence of the chloride ion, gives about 28.9 mEq of chloride in 1 teaspoon of salt.
How does the process of natural selection account for the diversity of the organisms that Darwin observed on the Galapagos islands?
peanut brittle
The solubility of pbcl2 in water is 0.01M at 25 degree Celsius its max concentration in 0.1M nacl will be?
The solubility of PbCl2 is 0.01M in water, but the presence of NaCl will affect its solubility due to the common ion effect. The maximum concentration of PbCl2 in 0.1M NaCl solution can be calculated using an ICE table and the Ksp of PbCl2. The exact calculation would involve taking into account the common ion effect and the equilibrium concentrations of Pb2+ and Cl- ions in the solution.
Explain how stress and clinical hysteria could account for some of the unusual behaviors observed?
These questions are hard, I have the same ones to answer. So difficult to find these answers.
What is the similarity and difference between a memoir and a personal account?
A memoir is a specific type of personal account that focuses on a particular aspect of the author’s life or a specific period of time, often with a reflective or introspective tone. A personal account, on the other hand, is a broader term that can encompass various forms of autobiographical writing that may not follow a strictly chronological or thematic structure. The key similarity between the two is that they both involve the author recounting personal experiences and emotions.
How would you Account for the solubility of the substance in water?
The solubility of a substance in water is usually determined by the polarity of the substance and water molecules. Polar substances tend to dissolve in water because they can form favorable interactions with water molecules. Nonpolar substances, on the other hand, are less soluble in water because they cannot form strong interactions with water. Temperature, pressure, and presence of other solutes can also affect solubility.
Why the blending hypothesis rejected as the method of inheritance?
The blending hypothesis was rejected as the method of inheritance because it could not explain the observed patterns of inheritance, especially the reappearance of traits in later generations that were not visible in the immediate offspring. Additionally, the blending hypothesis does not account for the variation observed in offspring that is more consistent with the principles of Mendelian genetics.
How do you account for observed differences in hardness of the crystals?
Observed differences in crystal hardness can be attributed to variations in the arrangement of atoms within the crystal lattice, impurities present in the crystal structure, temperature of crystallization, and the presence of structural defects like dislocations or vacancies. These factors can affect the strength of interatomic bonds and influence the overall hardness of the crystal.
How many days did it take Nehemiah to pray and observe the fallen wall?
Nehemiah prayed and observed the fallen wall for several days before taking action. The exact number of days is not specified in the biblical account.
Can Tycho's model explain the phases of venus as observed by Galileo?
No, Tycho's model cannot explain the phases of Venus observed by Galileo. Tycho's model proposed an Earth-centric system with the planets revolving around the Sun, which would not account for the varying phases of Venus. Galileo's observations of Venus' phases provided evidence in support of the heliocentric model proposed by Copernicus.
