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muminat
3 years ago
7

Students pour some table salt into a beaker with distilled water to make a solution in order to test its conductivity. When they

placed a conductivity probe in the salt water solution, it measured a high conductivity. The students repeated the same procedure with white sugar and measured no conductivity. Which of the following statements best explains why sugar is not conductive in solution?
Chemistry
1 answer:
klasskru [66]3 years ago
5 0

Answer:

the answer is Covalent compounds separate into neutral molecules when they dissolve in water.

Explanation: covalent doesn’t conduct electricity in water

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15.00 g of NH4HS(s) is introduced into a 500. mL flask at 25 °C, the flask is sealed, and the system is allowed to reach equilib
Ahat [919]

Answer:

0.328 atm

Explanation:

Kp is the equilibrium constant calculated based on the pressure, and it depends only on the gas substances. It will be the multiplication of partial pressures of the products raised to their coefficients divided by the multiplication of partial pressures of the reactants raised to their coefficients.

For the equation given, the stoichiometry is 1 mol of NH₃ for 1 mol of H₂S, so they will have the same partial pressure in equilibrium, let's call it p. So:

Kp = pxp

0.108 = p²

p = √0.108

p = 0.328 atm, which is the partial pressure of the ammonia.

3 0
4 years ago
Sucrose is very soluble in water. At 25◦C,
omeli [17]

Answer:

<h2>number of moles of solute dissolved in one liter of solution. </h2>

1. 8.28

Explanation:

I'm not sure but I hope it's help

7 0
3 years ago
How does activation energy affect a chemical reaction ?
PilotLPTM [1.2K]

Enzymes affect the rate of the reaction in both the forward and reverse directions; the reaction proceeds faster because less energy is required for molecules to react when they collide. Thus, the rate constant (k) increases. Figure 3: Lowering the Activation Energy of a Reaction by a Catalyst.

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3 0
3 years ago
Read 2 more answers
Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction is
umka21 [38]

Answer:

50. 5mol

Explanation:

The mass of Zinc required = 3.30 kg = 3300 grams

The relation between moles and mass is:

moles=\frac{mass}{atomicmass}

Atomic mass of Zinc = 65.38g/mol

molesofZinc=\frac{3300}{65.38}

molesofzinc=50.47mol

The answer to three significant figures will be 50.5 mol

3 0
3 years ago
Help me please it’s all due soon
trapecia [35]

Omg we did this but i forgot how to do it oh and i failed the test so um try to type the same problem on google that's how i got all the right answer on my homework. Watch this video tells you the answer https://youtu.be/S8GjkD296gg

7 0
3 years ago
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