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3 years ago

How many moles of oxygen gas react to yield 0.200 mole water? . . C5H12(g) + 8 O2(g) = 5 CO2(g) + 6H2O(g)

1 answer:

4 0

C5H12(g) + 8 O2(g) = 5 CO2(g) + 6H2O(g)
molar ratio of H2O to O = 6:8
we have 0.200 moles of H2O so we need 0.200 * 8/6 moles of O2 = 0.267 moles of O2

Therefore, there will be 0.267 moles of O2 gas required to yield 0.2 moles of H20.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

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Which statements about exothermic and endothermic reactions are correct? (its a multiple choice question)

geniusboy [140]

Answer:

C)1 and 3 only☺️

Explanation:

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4 years ago

What would happen if the sand dunes in an area were destroyed?

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Answer:

Our beaches would be unprotected

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3 years ago

Read 2 more answers

Draw one representation that shows the intermolecular interactions between NH_3 and water and another that shows the intermolecu

Lera25 [3.4K]

Answer:

NH3 has greater water solubility due to intermoleculate interactions

Explanation:

Hi:

If we represent the structures of NH3 and SbH3 we can see that they are similar to the naked eye, this is because N and Sb belong to the same group of the periodic table (group 15).

However, the electronegativity of N is greater than that of Sb. The NH3 molecule is polar and can form an intermolecular interaction called hydrogen bridge with water.

Sb is less electronegative than N. The SBH3 molecule forms an intermolecular interaction with water called dipole-induced dipole.

The zone with positive charge density of the water molecule (hydrogens) is oriented towards the zone with positive charge density of SBH3 (the pair of electrons not shared)

Stronger intermolecular junctions allow greater solubility of NH3 molecules.

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5 0

3 years ago

A car is traveling at a speed of 95 mi/h. If there are 0.62137 miles (mi) in a kilometer,

SIZIF [17.4K]

Answer:

42 m/s

Explanation:

To we convert units for speed we can use dimensional analysis. First thing we do is seperate the measurement into a fraction. After this we can multiply by 1km over 0.62137 miles. We do this so that the miles cancel out.

$\frac{95mi}{h}$ × $\frac{1km}{0.62137mi}$ = $\frac{95km}{0.62137h}$

After this we can use a conversion factor and divide by 3.6.

$\frac{95km}{0.62137h}$ ÷ 3.6 = 42 m/s

4 0

3 years ago

36.4 g of SnCl2 is dissolved in 135.7 mL of water.

Yuki888 [10]

Answers:

1st: 189.6 g/mol

2nd: 0.1357 L

3rd: 1.41 M

Explanation:

Finding Molar Mass:

SnCl2 = Tin(II) Chloride

Tin has a molar mass of 118.71 g/mol

Chloride has a molar mass of 35.453 g/mol

Chloride*2 = 70.906

118.71 + 70.906 ≈ 189.6 g/mol

Finding Liters of Solution:

L = mL/1000

135.7 mL / 1000 = 0.1357

Finding Molarity:

molarity = moles of solute / liters of solution

M = (36.4g / 189.6g) / 0.1357 L = 1.41 M

Hope this helped ;)

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2 years ago