Answer:

**Answer : The heat energy needed would be, 6486.5125 J**

**Explanation :**

**To calculate the change in temperature, we use the equation:**

where,

q = heat needed = ?

m = mass of aluminum = 223 g

c = specific heat capacity of aluminum =

= change in temperature

= initial temperature =

= final temperature =

Putting values in above equation, we get:

**Therefore, the heat energy needed would be, 6486.5125 J**

C6H6NCl On the basis of the molecular formula, 1H NMR data, and IR data provided, propose a consistent structure.H`NMR data: δ 300 (s, 2H), 6.57 (d, 2H), 7.05 (d, 2H) IR data: 3400 (broad), 3250 (broad), 1590, 820 cm^(-1).Draw your proposed structure below.

A buffer solution is 0.413 M in HF and 0.237 M in KF. If Ka for HF is 7.2×10-4, what is the pH of this buffer solution?

A solution contains 0.10 M Pb2+ and 0.10 M Cu2.. Which cation will precipitate first when a solution of NazS is slowly added to the mixture? Refer to the information sheet for solubility constants. P A) Pb2+ B) Cu2+ C) impossible to tell D) both cations

When palmitoleic acid reacts with hydrogen to form a saturated fatty acid, indicate the stoichiometry of the reaction and the product that is formed. If the stoichiometry of H2 or the product is not integral, enter a fraction (i.e. 3/2)

of all the hydrogen nuclei in the ocean, 0.0156 how much deuterium could be obtained from 1.0 gal of ordinary tap water

A buffer solution is 0.413 M in HF and 0.237 M in KF. If Ka for HF is 7.2×10-4, what is the pH of this buffer solution?

A solution contains 0.10 M Pb2+ and 0.10 M Cu2.. Which cation will precipitate first when a solution of NazS is slowly added to the mixture? Refer to the information sheet for solubility constants. P A) Pb2+ B) Cu2+ C) impossible to tell D) both cations

When palmitoleic acid reacts with hydrogen to form a saturated fatty acid, indicate the stoichiometry of the reaction and the product that is formed. If the stoichiometry of H2 or the product is not integral, enter a fraction (i.e. 3/2)

of all the hydrogen nuclei in the ocean, 0.0156 how much deuterium could be obtained from 1.0 gal of ordinary tap water

**Answer:**

The mixture is not in equilibrium, the reaction will shift to the left.

**Explanation:**

*Based on the equilibrium:*

*Fe³⁺+ HSCN ⇄ FeSCN²⁺ + H⁺*

*kc = 30 = [FeSCN²⁺] [H⁺] / [Fe³⁺] [HSCN]*

Where [] are concentrations at equilibrium. The reaction is in equilibrium when the ratio of concentrations = kc

Q is the same expression than kc but with [] that are not in equilibrium

Replacing:

Q = [10.0M] [1.0M] / [0.1M] [0.1M]

Q = 1000

As Q > kc, the reaction will shift to the left in order to produce Fe³⁺ and HSCN untill Q = Kc

The mixture's equilibrium status can be determined by comparing the reaction quotient (Q) with the equilibrium constant (Kc). If Q < Kc, the reaction proceeds to the right (products) to achieve equilibrium. If Q > Kc, the reaction proceeds to the left (reactants) to achieve equilibrium.

To determine if the mixture is initially at equilibrium, we need to calculate and compare the reaction quotient (Q) and the equilibrium constant (Kc) of the reaction. The **reaction quotient** is a measure of the relative concentrations of products and reactants at any point in time, whereas Kc, is the measure of these concentrations only at equilibrium.

Assuming that the reaction in question is: Fe3+ + HSCN ↔ FeSCN2+ + H + . In this case,

Q = [FeSCN2+]/[Fe3+][HSCN] = 10 / (0.1 * 0.1) = 1000. If Kc is less than 1000, the reaction is not at equilibrium and will need to proceed to the left (reactants) to reach equilibrium. Conversely, if Kc is greater than 1000, the reaction is not at **equilibrium** and will need to proceed to the right (products).

#SPJ11

**Answer:**

Baking, microwave, heating system for your house, water boiler, fridge.

**Answer : The distance in kilometers is, 42.2 km**

**Explanation :**

As we are given that the length of the marathon race is 26.2 mile. Now we have to determine the distance in kilometers.

**The conversion used for distance from mile to kilometer is:**

1 mile = 1.609 km

As, 1 mile = 1.609 km

So, 26.2 mile =

= 42.2 km

**Thus, the distance in kilometers is, 42.2 km**

**Answer: 42.16481 **

**Explanation:**

**Answer: [H3O+]= 0.05 M**

**Explanation:**

Message me for extra explanation.

snap- parkguy786

"__ 0.154 L__" is the

Given:

**Pressure**,

**Volume**,

As we know,

→

or,

→

By substituting the values, we get

Thus the above answer i.e., "**option a**" is correct.

**Learn more:**

**Answer:**

Option a . 0.154L

**Explanation:**

P₁ . V₁ = P₂ . V₂

when we have constant temperature and constant moles for a certain gas.

At sea level, pressure is 1 atm so:

0.5 L . 1atm = V₂ . 3.25 atm

(0.5L . 1atm) / 3.25 atm = 0.154 L

**Answer:**

38.96383282 amu

**Explanation:**

39.0983 = (40.9618 0.067302) + ( ? (1-0.067302)

39.0983 = 2.756811064 + ( ? 0.932698)

subtract 2.756811064 from both sides

36.34148894 = ( ? 0.932698)

divide both sides by 0.932698

? = 38.96383282 amu

Answer:

38.96383282 amu

Explanation:

39.0983 = (40.9618 0.067302) + ( ? (1-0.067302)

39.0983 = 2.756811064 + ( ? 0.932698)

subtract 2.756811064 from both sides

36.34148894 = ( ? 0.932698)

divide both sides by 0.932698

? = 38.96383282 amu