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ollegr [7]
3 years ago
13

Can someone help me with this please!

Chemistry
1 answer:
Kryger [21]3 years ago
8 0
<span>Step 1: Convert the given amount to moles, by dividing the given amount by the molecular weight of the compound. 

5 g C3H8 (1 mol / 44 g C3H8) = 0.114 mol C3H8 

Step 2: Find the mole ratio between the given and the desired target (in this case water). The mole ratio between C3H8 and water is 1:4, that is, you can make 4 times as much water from a one C3H8 (assuming that it isn't the limiting reactant). 

0.114 mol C3H8 (4 moles H2O / 1 mol C3H8) = 0.456 mol H2O 

Step 3: Reconvert back to grams by multiplying by the molecular weight of the new target (water). 

0.456 mol H2O (18 g / 1 mol H2O) = 8.208 g Water. Hope this helped! :) </span><span />
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2)Atomic mass of element X:
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3 years ago
Explain how to calculate net force.
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6 0
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A geochemist in the field takes a 46.0 mL sample of water from a rock pool lined with crystals of a certain mineral compound X.
inysia [295]

Answer:

The solubility of the mineral compound X in the water sample is 0.0189 g/mL.

Explanation:

Step 1: Given data

The volume of water sample = 46.0 mL.

The weight of the mineral compound X after evaporation, drying, and washing = 0.87 g.

Step 2: Calculate the solubility of X in water

46.00 mL of water sample contains 0.87 g of the mineral compound X.

To calulate how many grams of the mineral compound  1.0 mL  of water sample contains:

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This means the solubility of the mineral compound X in the water sample is 0.0189 g/mL.

3 0
3 years ago
Or each set of elements represented in this periodic table outline, identify the principal quantum number, n , and the azimuthal
Tems11 [23]
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5 0
3 years ago
Read 2 more answers
Hi May I know how to balance this
almond37 [142]

Answer:

  2Ba₃(PO₄)₂ +6SiO₂ ⇒ P₄O₁₀ +6BaSiO₃

Explanation:

Equating coefficients, you get ...

  aBa₃(PO₄)₂ +bSiO₂ ⇒ cP₄O₁₀ +dBaSiO₃

For Ba: 3a = d

For P: 2a = 4c

For O: 8a +2b = 10c +3d

For Si: b = d

__

Expressing everything in terms of b and c, we get ...

  d = b

  a = b/3 = 2c

From the second, b = 6c, so we have ...

  a = 2c

  b = 6c

  c = c

  d = 6c

And we can write the equation with c=1 as ...

  2Ba₃(PO₄)₂ +6SiO₂ ⇒ P₄O₁₀ +6BaSiO₃

4 0
3 years ago
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