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Sholpan [36]
3 years ago
9

Which of the following will have the highest boiling point?

Chemistry
1 answer:
DerKrebs [107]3 years ago
8 0

Answer:

0.1M NH3

Explanation:

The boiling point of aqueous solutions depend on the nature of intermolecular interactions present. KBr will yield an ionic solution but NH3 will yield a molecular solution having hydrogen bonds. The degree of hydrogen bonding in the aqueous solution will further increase with the concentration of the solution.

Remember that experimental data shows that hydrogen bonds are strong bonds that lead to a significant increase in the boiling point of solutions. Hence 0.1M NH3 solution will have a higher boiling point due to intermolecular hydrogen bonding in the solution.

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How many moles of cacl2 are needed to make 0.250 liters of 2.250m solution
ANTONII [103]

Answer:

.562 mol (with respect to signifigant figures)

Explanation:

to find moles we must use concentration to cancel liters.

2.250 mol/L x .250 L = .5625 mol

8 0
3 years ago
How do an alligator’s eyes help it survive?
scoray [572]
An alligator has has an extra eyelid that protects there eyes underwater. It's basically their own built-in goggles.
8 0
3 years ago
Solve each of the following problems using one or more conver-sion factors:a. A container holds 0.500 qt of liquid. How many mil
svetoff [14.1K]

Answer:

a. 473mL.

b. 79.38kg

c. 24.47lb of fat

d. 42.5g of N.

Explanation:

a. A qt is equal to 946mL. 0.500qt are:

0.500qt * (946mL / 1qt) = 473mL

b. 1lb is equal to 0.4536kg, 175lb are:

175lb *(0.4536kg / 1lb) = 79.38kg

c. The fat in kg of the athlete is:

74kg * 15% = 11.1kg of fat. In pounds:

11.1kg * (1lb / 0.4536kg) = 24.47lb of fat

d. The mass of nitrogen in the fertilizer is:

10.0oz * 15% = 1.5oz of N

1 oz is equal to 28.35g. 1.5oz are:

1.5oz * (28.35g / 1oz) = 42.5g of N

8 0
3 years ago
What mass of YCL3 forms when 10.0 grams of each reactant are combined?
Triss [41]

The mass of YCl_3 that would be formed will be 18.22 grams

<h3>Stoichiometric calculations</h3>

Let us first look at the balanced equation of the reaction:

2Y + 3Cl_2 --- > 2YCl_3

The mole ratio of Y to Cl_2 is 2:3.

Mole of 10.0 grams of Y = 10/88.9 = 0.11 moles

Mole of 10.0 grams  Cl_2 = 10/71 = 0.14 moles

3/2 of 0.11 = 0.165. Thus,  Cl_2 is limiting in availability.

Mole ratio of  Cl_2 and YCl_3 = 3:2

Equivalent mole of YCl_3 = 2/3 x 0.14 = 0.093 moles.

Mass of 0.093 moles YCl_3 =0.093 x 195.26 = 18.22 grams

More on stoichiometric calculations can be found here: brainly.com/question/27287858

#SPJ1

5 0
2 years ago
The amino acid methionine can be used as fuel by being converted to succinyl CoA. What would be the estimated ATP yield for the
andre [41]

Answer:

18 molecules of ATP will be produced for the breakdown of methionine to succinyl CoA and the entry of succinyl CoA to the citric acid cycle with no input of glucose.

Explanation:

Reactions                                          reduced co enzymes           ATP formation

α keto glutarate to propionyl CoA      2 NADH                                         6 moles

Succinyl CoA to succinate                                                               2 GTP≈ 2 ATP

Succinate to fumarate                         2FADH2                                      4  moles

Malate to oxaloacetate                        2 NADH                                       6 moles

3 0
3 years ago
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