Answer:
- <em>The mole ratio of C₄H₁₀ and CO₂ is</em><u> 2 : 8, which simplifies to 1 : 4</u>.
Explanation:
The<em> mole ratio</em> is the relative proportion of the moles of products or reactants that participate in the reaction according to the chemical equation.
The chemical equation given is:
- 2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O
Once you check that the equation is balanced, you can set the <em>mole ratios</em> for all the reactants and products. The coefficients used in front of each reactant and product, in the balanced chemical equation, tells the mole ratios.
In this case, they are: 2 mol C₄H₁₀ : 13 mol O₂ : 8 mol CO₂ : 10 mol H₂O
Since you are asked about the mole ratio of C₄H₁₀ and CO₂ it is:
- 2 mol C₄H₁₀ : 8 mol CO₂ , which dividing by 2, simplifies to
- 1 mol C₄H₁₀ : 4 mol CO₂, or
<u>Answer:</u> The mass percent of NaBr in the solution is 10.18 %
<u>Explanation:</u>
To calculate the mass percentage of calcium ions in milk, we use the equation:
We are given:
Mass of solution = 270.0 g
Mass of NaBr = 27.50 g
Putting values in above equation, we get:
Hence, the mass percent of NaBr in the solution is 10.18 %
Answer: Option (a) is the correct answer.
Explanation:
Atoms are the species which cannot be divided into its constituent particles. These atoms when joined together then they tend to constitute a molecule.
For example, a piece of gold is made up of number of gold atoms.
So, when we cut this gold piece into smaller pieces then its atoms also get separated from each other. But when we separate the gold into tiny pieces that could no longer be divided without losing their gold-like properties then it means that now each of its atoms has been separated out that cannot be divided further.
Thus, we can conclude that you have a piece of gold and you cut it into smaller pieces. If you could continue cutting, you would eventually separate the gold into tiny pieces that could no longer be divided without losing their gold-like properties. These individual component pieces are called atoms.
<h3>
Answer:</h3>
9,729.73 L
<h3>
Explanation:</h3>
- Based on Boyle's law when temperature is held constant then the volume of a fixed mass of a gas, V is inversely proportional to Pressure, P.
- That is; Pα 1/V
- Mathematically, P= k/V where k is a constant
- Therefore, when the volume of a gas and the pressure are altered,
- P1V1=P2V2 = k, where P1 and P2 are the initial and final pressure respectively while V1 and V2 are the initial and final pressure respectively.
In this case;
Initial Pressure, P1 = 150 atm
Initial volume, V1 = 60.0 L
Final pressure, P2 = 0.925 atm
we are required to calculate the final volume
But, P1V1 =P2V2
Rearranging the formula, V2 = P1V1 ÷ P2
Thus;
V2 =(150 atm × 60.0 L) ÷ 0.925 atm
= 9,729.73 L
The new volume will be 9,729.73 L