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Maksim231197 [3]
3 years ago
13

The enthalpy of reaction is −2202.0 kJ/mol. How much energy (in joules) will be released if 65.98 grams of propane is burned. (M

olar mass of propane = 44.11 g/mol). Record your answer in scientific notation using 3 significant figures.
The combustion of propane is given by the following reaction.

C3H8+3O2→3CO2+4H2O
Chemistry
1 answer:
m_a_m_a [10]3 years ago
6 0

Answer:very old tftp

Explanation:

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120C°

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since an element always has a different number of protons, the mass can indicate how many neutrons are in an isotope
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The metalloid that has five valence electrons in the fourth electron shell is
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A geochemist in the field takes a 36.0 mL sample of water from a rock pool lined with crystals of a certain mineral compound X.
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solubility of X in water at 17.0 ^{0}\textrm{C} is 0.11 g/mL.

Explanation:

Yes, the solubility of X in water at 17.0 ^{0}\textrm{C} can be calculated using the information given.

Let's assume solubility of X in water at 17.0 ^{0}\textrm{C} is y g/mL

The geochemist ultimately got 3.96 g of crystals of X after evaporating the diluted solution made by diluting the 36.0 mL of stock solution.

So, solubility of X in 1 mL of water = y g

Hence, solubility of X in 36.0 mL of water = 36y g

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Hence solubility of X in water at 17.0 ^{0}\textrm{C} is 0.11 g/mL.

3 0
3 years ago
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