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Marina CMI [18]
3 years ago
9

What does the speed of seismic wave depend on

Chemistry
1 answer:
juin [17]3 years ago
6 0
Waves depends on density and elasticity of the medium
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Problem page gaseous ethane ch3ch3 will react with gaseous oxygen o2 to produce gaseous carbon dioxide co2 and gaseous water h2o
iVinArrow [24]

m(\text{CO}_2) = 2.24 \; \text{g}

Ethene react with oxygen at a 2 : 7 molar ratio:

2\; \text{C}_2 \text{H}_6 (g) + 7\; \text{O}_2 (g) \to 6\; \text{H}_2{O} (g) + 4\; \text{CO}_2 (g)

Convert the quantity of each reactant supplied to number of moles of particles:

  • n(\text{C}_2\text{H}_6) = 0.60 \; \text{g} / 28.05 \; \text{g} \cdot \text{mol}^{-1} =  0.0214 \; \text{mol}
  • n(\text{O}_2) = 3.27 \; \text{g} / 32.00 \; \text{g} \cdot \text{mol}^{-1} =  0.102 \; \text{mol}

The question stated not whether both reactants were used up in this process. Thus start by testing the assumption that e.g., ethene was used up while some oxygen gas were left unreacted (ethene as the <em>limiting </em>reagent.) Under this assumption, the relative availability of the two species, n(\text{C}_2 \text{H}_6) /2 and n(\text{O}_2) /7 (as seen in the balanced chemical equation) shall satisfy the relationship

n(\text{O}_2) / 7 - n(\text{C}_2 \text{H}_6) / 2 > 0

In other words,

n(\text{O}_2)/7 > n(\text{C}_2 \text{H}_6)/2

n(\text{C}_2 \text{H}_6) / n(\text{O}_2) < 2/7 \approx 0.286

Evaluating the expression n(\text{C}_2 \text{H}_6) / n(\text{O}_2) with data given in the question yields approximately 0.210 < 0.286, which does satisfy the relationship. Hence the assumption holds and ethene is the limiting reactant.

The quantity of a reactant produced in a chemical reaction is related to its stoichiometric (of relating to proportions) relationship with the limiting reactant (or any of the reactants in case of more than one limiting reactant.) For this scenario, given the molar ratio n(\text{C}_2\text{H}_6) : n( \text{CO}_2) = 2:4,

n(\text{CO}_2) = n(\text{C}_2\text{H}_6) \cdot (2 / 4) = 0.0510 \; \text{mol}

m(\text{CO}_2) = 0.0510 \; \text{mol} \times 44.01 \; \text{g} \cdot  \text{mol}^{-1} = 2.24 \; \text{g}

4 0
3 years ago
What properties do scientists use to identify minerals
sineoko [7]

<span>Scientists use-
Hardness</span>

<span />Streak

Density

Specific Gravity

ColorCrystal Shape.LusterCleavage/Fracture
           
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3 years ago
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How can biodiesel be a solution to the problems of climate change?
Alex73 [517]

Answer:

BIOHEAT is a biodiesel mix that can be utilized (without equipment changes) in most home heaters. BIOHEAT promptly diminishes various hurtful discharges from heater use (up to 80% contingent upon blend used) and the oil is made from nearby feedstocks like utilized cooking oil

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3 years ago
Based on his education what is amazing about issac Newton’s great abilities in math and science
deff fn [24]

Answer:

Calculus.... Differentiation and integration..... This two... is mathematical application... was the key of revealing the hidden mysteries of world

7 0
3 years ago
1.00L of a gas at STP is compressed to 473 ml. What is the new pressure of the gas?
I am Lyosha [343]
P₁V₁ = P₂V₂

Convert 473ml > LP = \frac{(1ATM)(1.00L)}{(0.473L)}

(1atm)(1.00L) = (0.473L)P₂

Divide by (0.473L)

P = \frac{(1atm)(1.00L)}{(0.473L)}

Solve for 2.11atm
4 0
4 years ago
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