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Karo-lina-s [1.5K]
3 years ago
6

If all data points lie in a straight line on your standard curve except for one point. Should you ignore the point or shift the

line to connect the points
Chemistry
2 answers:
Simora [160]3 years ago
8 0
Ignore the point, the point is an outlier and shifting the line to connect the point can alter the data dramatically especially if you're asked for the median or mean.
Ivanshal [37]3 years ago
3 0
Ignore the point, the majority of the points are along the trend line.
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At equilibrium at 2500K, [HCl]=0.0625M and [H2]=[Cl2]=0.00450M for the reaction H2+Cl2 ⇌ HCl.
ASHA 777 [7]

Answer:

a. H_2+Cl_2 \rightleftharpoons 2HCl

b. K = 192.9

c. Products are favored.

Explanation:

Hello!

a. In this case, according to the unbalanced chemical reaction we need to balance HCl as shown below:

H_2+Cl_2 \rightleftharpoons 2HCl

In order to reach 2 hydrogen and chlorine atoms at both sides.

b. Here, given the concentrations at equilibrium and the following equilibrium expression, we have:

K=\frac{[HCl]^2}{[H_2][Cl_2]}

Therefore, we plug in the data to obtain:

K=\frac{(0.0625)^2}{(0.00450)(0.00450)}\\\\K=192.9

c. Finally, we infer that since K>>1 the forward reaction towards products is favored.

Best regards!

8 0
3 years ago
A pressure cooker contains 5.68 L of air at a temperature of 390 4K if the absolute pressure of the air in the pressure cooker i
Cloud [144]

Answer:

3.59x10⁻⁴ mol

Explanation:

Assuming ideal behaviour we can solve this problem by using the<em> PV=nRT formula</em>, where:

  • P = 205 Pa
  • V = 5.68 L
  • n = ?
  • R = 8314.46 Pa·L·mol⁻¹·K⁻¹
  • T = 390.4 K

We<u> input the data given by the problem</u>:

  • 205  Pa * 5.68 L = n * 8314.46 Pa·L·mol⁻¹·K⁻¹ * 390.4 K

And <u>solve for n</u>:

  • n = 3.59x10⁻⁴ mol
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vladimir2022 [97]

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Seasonal variation in Earth's climate are caused by
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B. Earth’s tilt

Earth’s tilt exposes different parts of the earth to varying degrees of sunlight throughout the year, causing seasons.
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Finish the following word equation.<br><br> calcium + nitric acid →
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HNO3 + Ca —-> H2O + N20 + Ca(NO3)2
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