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4 years ago

6

How many joules would be required to change the temperature of 250.0 g of aluminum from 15.0°C to 75.0°C? The specific heat capa

city of a luminum is 24.2J/g°C.

1 answer:

Paul [167]4 years ago

3 0

Step by step answer =100 joules

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Rx: Codeine phosphate 30 mg/tsp Tussin syrup 30mL Elixophyllin qs 240 mL Sig: 5mL qid pc hs If 5 mL of Tussin syrup contains 100

kotykmax [81]

Answer:

50 mg.

Explanation:

From the prescription, 240 ml amount is to be prepared containing 30 ml tussin syrup. As the frequency is 5 mL qid, it means 5mL of syrup is to be administered four times daily i.e. 20 mL daily. To calculate the amount of tussin taken daily,

<em> </em><em><u>30 mL tussin</u></em><em> = </em><em><u>X mL of tussin</u></em>

<em> 240 mL solution 20ml solution</em>

⇒ 2.5 mL of tussin

5 ml tussin contains 100mg guafenesin,

So,

⇒ 2.5 ml of tussin contains 100x2.5/5 = 50 mg guaifenesin

4 0

4 years ago

The kinetic molecule theory assumes that the particles of an ideal gas

eduard

Explanation:

It is assumed that the particles of an ideal gas have no such attractive forces. The motion of each particle is completely independent of the motion of all other particles. The average kinetic energy of gas particles is dependent upon the temperature of the gas.

8 0

4 years ago

How is Deposition a exothermic reaction?

nikdorinn [45]

<span>all the ones that phase down are exothermic - freezing, deposition, condensation.

all the ones that phase up are endothermic - melting, sublimation, vaporization

endothermic is to gain heat, exothermic is to release heat</span>

5 0

4 years ago

If you place 2 moles of NaCL in a beaker and then add enough water to have a final volume of 0.5 liters, what is the molarity of

julia-pushkina [17]

Answer:

The molarity of the solution is 4M

Explanation:

Molarity is defined as the amount of moles of solute present in one liter of solution. So the molarity of any solution can be found by dividing the moles of solute between the volume in liters of the solution.

For this case we have:

$M=\frac{2\:moles\:NaCl}{0.5\:L\:solution} =4M$

3 0

4 years ago

Oxygen decays to form nitrogen. 15 8 O → 15 7 N + 0 1 e This type of nuclear decay is called

Natasha2012 [34]

The type of nuclear decay in which Oxygen decays to form nitrogen is beta plus decay.

<h3>What is a beta plus decay?</h3>

A beta plus decay is a type of decay in which a proton in an element disintegrates to produce a neutron resulting in a decrease in the atomic number of the radioactive element.

In the given equation below:

$^{15}_{7}O \rightarrow ^{15}_{7}N + ^{0}_{1}e$

Oxygen decays to form nitrogen due to a decrease in atomic number.

This is an example of beta plus decay.

In conclusion, oxygen decays to form nitrogen beta plus decay.

Learn more about beta plus decay at: brainly.com/question/12448836

#SPJ1

5 0

3 years ago