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victus00 [196]
2 years ago
10

Which has more thermal energy, a bucketful of water at 21 Celsius degrees or a swimming pool at the same temperature?

Chemistry
1 answer:
worty [1.4K]2 years ago
4 0

Answer:

Bucket full of water

Explanation:

Metal burns easy

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Different vinegars can be 5-20% acetic acid solutions and have been used for medicinal purposes for thousands of years. If a per
nata0808 [166]

Answer:

1.5g

Explanation:

Remember that Molarity = (#moles of solute)/(#liters of solution)

This problem informs us that the Molarity of the vinegar is 0.84 and that the solution is 15mL.

First let's get your SI units to the correct ones.

15mL (1L/1000mL) = 0.015L

Molarity = (#moles of solute)/(#liters of solution) ~

(Molarity)(#liters of solution) = #moles of solute

(0.84M)(.015L) = 0.0126moles of acetic acid per tablespoon

2 tablespoons a day = 0.0126moles*2 =  0.0252 moles of acetic acid.

Now that we have the # of moles of acetic acid we need to get our answer into grams. The molecular weight of HC2H3O2 is 60g/mole.

0.0252mole HC2H3O2 (60g HC2H3O2/1mole HC2H3O2) = 1.512g ~ 1.5g HC2H3O2.

8 0
3 years ago
Scientific notation.
stiv31 [10]

Answer:

1.85 x 10^ -5

Explanation:

8 0
3 years ago
A 250 ml solution of 2.0 M NaOH is diluted to 1.0 liter. What is the final concentration of the solution?
Alex73 [517]

Answer:

Diluted concentration is 0.5M

Explanation:

Let's solve this with rules of three, although there is a formula to see it easier

In 1000 mL (1L), we have 2 moles of NaOH

In 250 mL we must have (250 . 2) / 1000 = 0.5 moles of NaOH

These moles will be also in 1 L of the final volume of the diluted solution

More easy:

1 L of solution has 0.5 moles of NaOH

Then, molarity is 0.5 M

The formula is: Concentrated M . Conc. volume = Diluted M . Diluted volume

2 M . 0.250L = 1L . Diluted M

0.5M = Diluted M

3 0
4 years ago
Read 2 more answers
A student compares the boiling point of substances having different intermolecular forces. Which dependent variable did the stud
maks197457 [2]

Boiling point

Explanation:

The likely dependent variable the student used in this experiment is boiling point temperature

The amount of heat supplied will determine when a substance will boil or not based on the intermolecular force in them.

  • In an experiment, the dependent variable is treated as the effect produced.
  • It is the variable that relies on the outcome of the experiment.
  • The independent variable is responsible for the changes in the experiment.
  • The cause is the independent variable. It does not rely on the outcome of the experiment.
  • The dependent variable is the boiling point.
  • The independent variable is the amount of heat supplied or temperature changes.

learn more:

Experiments brainly.com/question/5096428

#learnwithBrainly

3 0
4 years ago
PLEASE HELP!! Which statement would be the most useful for deriving the ideal gas law?
dezoksy [38]
The answer is volume is directly proportional to the number of moles. I hope this helps!!
5 0
3 years ago
Read 2 more answers
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