The reaction of S(OH)₂ with trifluoroacetic acid is as follow,
Sr(OH)₂ + 2 F₃C-COOH → (F₃C-COO)₂Sr + 2 H₂O
Trifluoroacetic acid a derivative of Acetic acid. The pKa value (-0.3) of trifluoroacetic acid is much smaller than Acetic acid (i.e. 4.7). This increase in acidity is mainly due to three fluorine atoms (highly electronegative) attached at alpha carbon. Therefore, when trifluoroacetic acid is reacted with base like Strontium Hydroxide it donated its proton readily forming a salt like Strontium trifluoroacetate and water.
the metric system is that volume is derived from the basic length measurement
mL and cm^3
What is metric system?
A system of measurements is called the metric system. It is employed in calculations and research across the globe. Here are some instances of measurements made with the metric system:
- The unit used to measure lengths and distances is the meter. In daily life, we use this unit to measure things like the length of a piece of clothing, the distance from school to home, etc.
- You may have noticed that the bag of your favorite food has a weight listed on it. 250 grams of potato chips, as an illustration. The unit of weight used here is the gram.
- Similar to this, the bottle of your preferred beverage has a volume indication (for example, 250 milliliters of cola). The unit of volume used here is the milliliter.
To learn more about metric system
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Answer:
<h2>4.99 × 10²³ atoms</h2>
Explanation:
The number of atoms of gold can be found by using the formula
<h3>N = n × L</h3>
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
N = 0.83 × 6.02 × 10²³
We have the final answer as
<h3>4.99 × 10²³ atoms</h3>
Hope this helps you
Climate is one of the factors that determines where different species of plants and animals can live, so paleontologists look for clues to a location's ancient climate in the types of fossil plants and animals they find there. For example, no modern crocodile species lives in a climate with long periods of freezing temperatures, so scientists hypothesize that ancient crocodiles had the same requirement for year round warmth. That leads them to consider the 110-million-year-old crocodile fossils from the Washington, D.C. to be part of a large body of circumstantial evidence that temperatures there were warm year round during the Early Cretaceous. Similarly, coal beds and fossil trees in the Arctic Slope of Alaska are among the many clues that Alaskan temperatures were very warm during the Late Cretaceous.
If it is a true or false questions, the answer is TRUE.
