1. Why don’t oil and water mix? 2. Why does salt dissolve in water when gasoline...

1. Why don’t oil and water mix?

2. Why does salt dissolve in water when gasoline doesn’t? What do the words “hydrophilic” and “hydrophobic” mean

3. What is a carbohydrate and monosaccharide?

4. How are monosaccharides linked together to make a polysaccharides? How are polysaccharides disassembled one no longer needed?

Expert Solution

queen_honey_blossom answered 2 years ago

Explain why water and oil (a long chain hydrocarbon) do not mix. In your explanation, be...

Explain why water and oil (a long chain hydrocarbon) do not mix. In your explanation, be sure to address how ΔH plays a role.

A tank contains 20 kg of salt dissolve in 7000 L of water. Brine that contain...

A tank contains 20 kg of salt dissolve in 7000 L of water. Brine that contain 0.041 kg of salt per liter of water enters the tank at a rate of 25 L/min. The solution is kept thoroughly mixed and drains from the tank at the same rate. How much Kg salt remains in the tank if as time approaches to infinite?

a. Why does water become less dense as it freezes? b. Why the ΔG mix ,...

a. Why does water become less dense as it freezes? b. Why the ΔG mix , for nonideal solution is not always negative c. To the thermodynamics of mixing of 2 components, find the mol fraction that has the largest impact on the thermodynamic quantities of the final solution. d. Calculate the effect that mixing 2 moles of nitrogen and 3 moles of oxygen has on the entropy of the final solution at 27 o C.

You dissolve 0.735 g of salt cyclphexylamine chloride with enough water in a 100.0 ml volumetric...

You dissolve 0.735 g of salt cyclphexylamine chloride with enough water in a 100.0 ml volumetric flask. You then titrate the solution with 0.050 M sodium hydroxide. Ka of cyclohexylamine is 2.71E-11. a) calculate NaOH volume needed of reach the equivalent point. b) calculate the pH at the equivalent point.

7.11. Consider production ratios of 2:1:1, 3:2:1, and 5:3:2 for oil, gasoline, and heating oil. Assume...

7.11. Consider production ratios of 2:1:1, 3:2:1, and 5:3:2 for oil, gasoline, and heating oil. Assume that other costs are the same per gallon of processed oil. a. Which ratio maximizes the per-gallon profit if oil costs $80/barrel, gasoline is $2/gallon, and heating oil is $1.80/gallon? b. Suppose gasoline costs $1.80/gallon and heating oil $2.10/gallon. Which ratio maximizes profit? c. Which spread would you expect to be most profitable during the summer? Which during the winter?

in percentage of water in hydrated salts experiment 1.How does the “percent-water in the hydrated salt”...

in percentage of water in hydrated salts experiment 1.How does the “percent-water in the hydrated salt” will be affected -? a.If you handle the crucible with (oily) fingers before its mass measurements. . b.If the hydrated salt is overheated and the anhydrous salt thermally c.decomposes, one product being a gas d.If one student decided to skip the step of reheating the sample in the experimental procedure. e.If the original sample is unknowingly contaminated with a second anhydrous salt. 2. What...

I have two liquids: Petroleum ether and water. I want to dissolve salt (NaCl), benzene (C6H6),...

I have two liquids: Petroleum ether and water. I want to dissolve salt (NaCl), benzene (C6H6), alcohol (CH3OH), octane (C8H18), and butter (C55H98O6) into one of the two solvents. Using “like dissolves like”, choose which of the two solvents each of the substances will dissolve into.

A tank originally contains 120 gal of fresh water. Then water containing 1/2 lb of salt...

A tank originally contains 120 gal of fresh water. Then water containing 1/2 lb of salt per gallon is poured into the tank at a rate of 2 gal/min, and the mixture is allowed to leave at the same rate. After 11 min the process is stopped, and fresh water is poured into the tank at a rate of 2 gal/min, with the mixture again leaving at the same rate. Find the amount of salt Q(11) in the tank at...

Which of the following statements explains why oil has a greater viscosity than water? 1. Oil...

Which of the following statements explains why oil has a greater viscosity than water? 1. Oil molecules always move slower than water molecules 2. Oil molecules have more space in between them than water molecules 3. Oil molecules have a more complicated shape than water molecules 4. Oil molecules are less dense than water molecules Which of the following statements is incorrect? 1. A catalyst does not alter the state of equilibrium in a chemical reaction 2. A catalyst remains...

1. why does olive oil have a lower melting point than butter fat? 2. how does...

1. why does olive oil have a lower melting point than butter fat? 2. how does LDL differ from HDL's 3. In a helix, how does bond occur between the amino acids in the peptide bond? 4. what is the difference in bonding between an alpha helix and a Beta plated sheet? 5. if serine were replaced by valine in a protein how would the tertiary stucture be affected? 6.(a) How does an enzyme speed up the reaction of a...

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