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3 years ago

15

Draw the structural formula for all the alkenes with the indicated molecular formula that, without undergoing a rearrangement, p

roduce the compound shown as a major product g

1 answer:

enyata [817]3 years ago

5 0

ya got to go get sum to eat then get it

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When methanol, CH 3 OH , is burned in the presence of oxygen gas, O 2 , a large amount of heat energy is released. For this reas

luda_lava [24]

<u>Answer:</u> The mass of methanol that must be burned is 24.34 grams

<u>Explanation:</u>

We are given:

Amount of heat produced = 581 kJ

For the given chemical equation:

$CH_3OH(g)+\frac{3}{2}O_2(g)\rightarrow CO_2(g)+2H_2O(l);\Delta H=-764kJ$

By Stoichiometry of the reaction:

When 764 kJ of heat is produced, the amount of methanol reacted is 1 mole

So, when 581 kJ of heat will be produced, the amount of methanol reacted will be = $\frac{1}{764}\times 581=0.7605mol$

To calculate mass for given number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Moles of methanol = 0.7605 moles

Molar mass of methanol = 32 g/mol

Putting values in above equation, we get:

$0.7605mol=\frac{\text{Mass of methanol}}{32g/mol}\\\\\text{Mass of methanol}=(0.7605mol\times 32g/mol)=24.34g$

Hence, the mass of methanol that must be burned is 24.34 grams

4 0

3 years ago

Which type of cloud would you expect the heaviest precipitation?

barxatty [35]

It is the nimbostratus cloud.

4 0

3 years ago

What kind of geometry does the following molecule have? H2S

Dovator [93]

It has bent geometry, which is similar to H2O, with the same angle of 109.5 degrees between 2 single H-S bonds.

5 0

3 years ago

Caleb is an inventor who has designed a new kind of fishing net. He is looking for a strong, flexible material that can be used

Ksenya-84 [330]

Answer:

c. Polystyrene

Explanation:

Caleb wants a synthetic material that is not soluble in water, so it must be a nonpolar material because water is polar.

Cellulose is a nonpolar molecular, but is a natural product;

Nylon is a synthetic compound, but is polar, so it' soluble in water;

Vulcanized rubber is polar and the rubber is a natural compound.

The only compound that he can use is polystyrene, which is insoluble in water and is a synthetic material.

3 0

3 years ago

Calculate each of the following quantities:<br> (g) Number of atoms in 0.0015 mol of fluorine gas

Inessa05 [86]

$1.81$ × $10^{21}$ atoms are in 0.0015 mol of fluorine gas

<h3>What is fluorine?</h3>

The chemical element fluorine has an atomic number of 9 and the symbol F. The lightest halogen, it is an extremely poisonous, pale yellow diatomic gas under normal conditions. With the exception of argon, neon, and helium, it reacts with every other element, making it the most electronegative and reactive element.

Fluorine is the 24th most abundant element overall and the 13th most abundant on Earth. When added to metal ores to decrease their melting temperatures for smelting, fluorite, the main mineral source of fluorine that gave the element its name, was first recorded in 1529. The Latin word fluo, which means "flow," gave the mineral its name.

Learn more about fluorine

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8 0

2 years ago