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3 years ago

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sorry that answer is wrong. A chemical bond is the force that holds together the elements in a compound

1 answer:

olya-2409 [2.1K]3 years ago

8 0

That is a true statement <span />

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The conversion of methyl isonitrile to acetonitrile in the gas phase at 250 °C CH3CN(g) is first order in CH3NC with a rate cons

nadya68 [22]

Answer: The concentration of $CH_3NC$ will be $1.56\times 10^{-2}M$ after 416 seconds have passed.

Explanation:

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $3.00\times 10^{-3}s^{-1}$

t = age of sample = ?

a = let initial amount of the reactant = $5.45\times 10^{-2}M$

a - x = amount left after decay process = $1.56\times 10^{-2}M$

$t=\frac{2.303}{3.00\times 10^{-3}}\log\frac{5.45\times 10^{-2}}{1.56\times 10^{-2}}$

$t=416s$

The concentration of $CH_3NC$ will be $1.56\times 10^{-2}M$ after 416 seconds have passed.

5 0

3 years ago

An alkyne of six carbon atoms gives the same single product in its reaction either with bh3 in thf followed by h2o2 /oh–, or wit

Alexeev081 [22]

Two compounds containing six carbon atoms on treatment with <span>either with BH</span>₃<span> in THF followed by H</span>₂<span>O</span>₂<span> /OH</span>⁻<span> (OR) with H</span>₂O <span>/ Hg</span>²⁺<span> / H</span>₃O⁺ gives the same products.
The two alkynes, their two different types of reactons and products are given below,

7 0

3 years ago

Read 2 more answers

The map shows the distribution of three species of organisms observed during a population survey. Identify the pattern of distri

Pepsi [2]

Answer:

I DONOT NOW SOORY

Explanation:

3 0

3 years ago

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Calculate the standard entropy of vaporization of ethanol at its boiling point, 352 K. The standard molar enthalpy of vaporizati

Korvikt [17]

Answer : The correct option is, (b) +115 J/mol.K

Explanation :

Formula used :

$\Delta S=\frac{\Delta H_{vap}}{T_b}$

where,

$\Delta S$ = change in entropy

$\Delta H_{vap}$ = change in enthalpy of vaporization = 40.5 kJ/mol

$T_b$ = boiling point temperature = 352 K

Now put all the given values in the above formula, we get:

$\Delta S=\frac{\Delta H_{vap}}{T_b}$

$\Delta S=\frac{40.5kJ/mol}{352K}$

$\Delta S=115J/mol.K$

Therefore, the standard entropy of vaporization of ethanol at its boiling point is +115 J/mol.K

8 0

4 years ago

Calculate the concentration, in moles per litre, of a solution formed when 13.0 g of calcium hydroxide is dissolved in 5.0 L. Pl

vichka [17]

Answer: The concentration, in moles per litre, of a solution formed when 13.0 g of calcium hydroxide is dissolved in 5.0 L is 0.036 M

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

$Molarity=\frac{n}{V_s}$

where,

n = moles of solute

$V_s$ = volume of solution in L

moles of $Ca(OH)_2$ = $\frac{\text {given mass}}{\text {Molar mass}}=\frac{13.0g}{74g/mol}=0.18mol$

Now put all the given values in the formula of molality, we get

$Molarity=\frac{0.18}{5.0L}=0.036M$

Therefore, the concentration, in moles per litre, of a solution formed when 13.0 g of calcium hydroxide is dissolved in 5.0 L is 0.036 M

8 0

3 years ago