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Bess [88]
3 years ago
5

A non-steroidal anti-inflammatory drug is metabolized with a first-order rate constant of 3.25 day−1 . what is the half-life for

the metabolism reaction? 1. 1.63 day 2. 0.308 day 3. 0.213 day 4. 2.25 day
Chemistry
1 answer:
patriot [66]3 years ago
4 0


A radioactive half-life talks about the amount of time it takes for half of the original isotope to deteriorate.

The solution for this problem is:

Half-life (lst order reaction) = ln2 over k <span>

<span>so half-life = .693 over 3.25 = .213 day is the half-life for the metabolism reaction</span></span>

<span> </span>

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Ns
Brut [27]

Answer:

Ca(OH)₂ + H₂SO₄     →     CaSO₄ + H₂O

Explanation:

Chemical equation:

Ca(OH)₂ + H₂SO₄     →     CaSO₄ + H₂O

Balanced chemical equation:

Ca(OH)₂ + H₂SO₄     →     CaSO₄ + 2H₂O

The given reaction is double displacement reaction in which anion and cation of both reactant exchanged with each other. Calcium hydroxide react with sulfuric acid and form calcium sulfate and water.

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

AB + CD → AD +CB

6 0
3 years ago
Lead has a density of 11.3 g/mL. If you have 105 grams of lead,
Elza [17]

Answer:

<h2>Volume = 9.29 mL</h2>

Explanation:

Density of a substance can be found by using the formula

Density( \rho) =  \frac{mass}{volume}

From the question

Density = 11.3 g/mL

mass = 105 g

Substitute the values into the above formula and solve for the volume

That's

11.3 =  \frac{105}{v}

Cross multiply

11.3v = 105

Divide both sides by 11.3

v =  \frac{105}{11.3}

v = 9.29203

We have the final answer as

<h3>Volume = 9.29 mL</h3>

Hope this helps you

6 0
3 years ago
1. The molar mass of BeF2
oksano4ka [1.4K]

Answer:

47.01 g/mol is molar mass

8 0
4 years ago
What is meant by the negative sign in an answer like"-46.8kJ"? When would you use a positive sign
MA_775_DIABLO [31]
It’s positive when you use energy for work
3 0
3 years ago
Explain how the understanding of penetrating power can be used to protect yourself from different types of ionizing radiation.
3241004551 [841]

Answer:

Radiation is energy. It can come from unstable atoms that undergo radioactive decay, or it can be produced by machines. Radiation travels from its source in the form of energy waves or energized particles. There are different forms of radiation and they have different properties and effects.

Explanation:

6 0
3 years ago
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