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miv72 [106K]
3 years ago
6

PLEASE HELP ASAPAHHH

Chemistry
2 answers:
Yanka [14]3 years ago
4 0

Answer:

if the oil is already 60 c and you heat up the hot plate to the same degree you are not changing anything

hope this helps :)

LenKa [72]3 years ago
4 0

Answer:

There is more olive oil than canola oil, so if she uses the same temperature to heat the olive oil as she did to heat the canola oil. The outcome of the answer. I could be wrong im trying my best!

Explanation:

Conduction is heat transfer through touch (physical contact between molecules). The hotter molecules are, the faster they move around and transfer their energy to other molecules. Convection is heat transfer through fluid flow, like when hot water is poured over ice or when cool air is blown over your warm soup. Radiation occurs when an object releases heat in the form of electromagnetic rays.

An object’s heat capacity describes the amount of heat required to change the temperature of that object by a certain amount. Specific heat is the amount of heat required to change the temperature of a substance by one degree (generally °C).

Liquids absorb heat in different ways. The temperature change in a particular liquid heated by conduction may not be the same trend of temperature change for the same liquid heated by radiation.

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Answer:

The hydrocarbon has a molecular formula of C3H3

Explanation:

Step 1: Data given

Suppose the mass of the compound is 100 grams

A hydrocarbon contains:

 ⇒ 92.3 % carbon = 92.3 grams

 ⇒ 7.7 % hydrogen = 7.7 grams

Molar mass of the compound is 40 g/mol

Molar mass of carbon = 12.01 g/mol

Molar mass of hydrogen = 1.01 g/mol

Step 2: Calculate moles

Moles = mass / molar mass

Moles carbon = 92.3 grams / 12.01 g/mol

Moles carbon = 7.69 moles

Moles hydrogen = 7.70 grams / 1.01 g/mol

Moles hydrogen = 7.62

Step 3: Calculate mol ratio

We divide by the smallest amount of moles

Carbon: 7.69/7.62 = 1

Hydrogen: 7.62/7.62 = 1

The empirical formula is CH

The molar mass is 13.02 g/mol

Step 4: Calculate the molecular formula

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We need to multiply the empirical formula by 3 to get the molecular formula

Molecular formula = 3*(CH) = C3H3

The hydrocarbon is C3H3

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