Correct Answer: A) 58.07

Explanation

To determine the relative molecular mass of the gas, we need to use the ideal gas equation:

\(PV = nRT\)

where \(P\) is the pressure, \(V\) is the volume, \(n\) is the amount of substance in moles, \(R\) is the gas constant, and \(T\) is the temperature in Kelvin.

First, convert the temperature to Kelvin:

\(T = 20^{\circ}C + 273.15 = 293.15K\)

Next, convert the volume to meters cubed:

\(V = 512 cm^3 = 0.000512 m^3\)

Now, we can rearrange the ideal gas equation to solve for the amount of substance, \(n\):

\(n = \frac{PV}{RT}\)

Substitute the given values:

\(n = \frac{(1 atm)(0.000512 m^3)}{(8.314 JK^{-1}mol^{-1})(293.15K)}\)

Convert the pressure from atm to J m\(^{-3}\):

\(1 atm = 101,325 J m^{-3}\)

\(n = \frac{(101,325 J m^{-3})(0.000512 m^3)}{(8.314 JK^{-1}mol^{-1})(293.15K)}\)

Calculate \(n\):

\(n \approx 0.0213 mol\)

Now, we can determine the relative molecular mass by dividing the mass of the gas by the amount of substance:

Relative Molecular Mass = \(\frac{mass}{moles}\)

Relative Molecular Mass = \(\frac{1.236g}{0.0213 mol} \approx 58.07\)

So, the correct answer isOption A: 58.07.

Correct Answer: B. loving

Correct Answer: C. All of the options

Correct Answer: A. slip rings with a split ring and connecting a battery

Correct Answer: A. S-S poles

Correct Answer: A. Inefficiency

Correct Answer: B. persuasive advertising

Correct Answer: D. Malplghlan tubule

Correct Answer: B. all rights and liberties are subordinated to state interest

Correct Answer: A) sincere shock and sorrow

Explanation

The question is asking about David's attitude towards Abner's death. Abner was a captain in Saul's army, and he was killed by Joab, David's general. The options given are sincere shock and sorrow, gladness for the death of an enemy, hypocritical shock and disbelief, and disappointment for unrealized dreams.

The correct option is A, sincere shock and sorrow. David was genuinely saddened by Abner's death, and he even composed a lament for him. David saw Abner as a valiant warrior and a potential ally, and he was devastated by his untimely death. David also punished Joab for killing Abner, showing that he did not condone violence against his enemies.

It is important to note that David's attitude towards Abner's death was not just based on personal feelings, but also on political considerations. Abner's death threatened to destabilize the fragile peace between the northern and southern tribes of Israel, and David needed to show that he was committed to maintaining unity and order. Therefore, while David was genuinely saddened by Abner's death, he also acted in a way that was politically astute.

In contrast, options B, C, and D are incorrect. David did not feel gladness for the death of an enemy, as he saw Abner as a potential ally. He also did not express hypocritical shock and disbelief, as his sorrow was genuine. Finally, he did not feel disappointment for unrealized dreams, as he did not have any particular aspirations related to Abner's life or death.

Overall, the correct option is A, sincere shock and sorrow, and it is important to understand the political context in which David's attitude towards Abner's death was expressed.