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emmasim [6.3K]
2 years ago
14

Barbara is converting 78°F to degrees Celsius. First, she subtracts 32 from 78. What is the next step?

Chemistry
1 answer:
goldfiish [28.3K]2 years ago
7 0

Answer:

Now she multiplies by 0.5556

Explanation:

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1. Write the structural formulas and give IUPAC names for all isorneric alcohols of molecular formula
EastWind [94]

Explanation:

Butanol (С4Н9OH)

Structural formula is :-

CH3-CH2-CH2-CH2-OH

6 0
3 years ago
Zingerone, one of the flavor molecules in ginger,
MissTica

The molecular formula of the compound is C12H15O3 hence the molar mass of the compound is 207 g/mol.

We need to obtain the number of moles of carbon, hydrogen and oxygen in the compound;

Carbon = 24.91 g/44g/mol × 1 mole of carbon = 0.566 moles

Mass of carbon =  0.566 moles × 12 g/mol = 6.792 g

Number of moles of hydrogen = 6.522 g/18 g/mol × 2 moles = 0.725 moles

Mass of hydrogen = 0.725 moles  × 1 g/mol = 0.725 g

Mass of oxygen = 10 - (6.792 g + 0.725 g) = 2.483 g

Number of moles of oxygen = 2.483 g/16 g/mol = 0.155 moles

Now we must divide through by the lowest number of moles;

C - 0.566/0.155   H - 0.725/0.155     O - 0.155/0.155

C - 4                    H - 5                        O - 1

The simplest formula is C4H5O Recall that the molar mass of the compound lies between 150.0 and 220.0 g/mol

4(12) + 5(1) + 16 = 69

Hence; n = 3 and the molecular formula of the compound is C12H15O3

The molar mass of the compound is; 12(12) + 15(1) + 3(16) = 207 g/mol

Learn more: brainly.com/question/15180604

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3 years ago
I’m really bad at science and i need to know how to define it
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It is a column of elements in the periodic table of the chemical elements.
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Which of the following would be the most likely adaptation of a whale population to tolerate a rise in ocean temperatures?
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It is better for the whales to go where the whales have the ability to dive longer and deeper to find cooler water.
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Explain the difference between complete dominance and codominance.Give an example of each one in order to explain it.
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In complete dominance, only one allele in the genotype is seen in the phenotype. In codominance, both alleles in the genotype are seen in the phenotype. In incomplete dominance, a mixture of the alleles in the genotype is seen in the phenotype.

I hope it helps
Stay home stay safe dear !
8 0
3 years ago
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