In comparing a 0.25 molality aqueous NaCl solution to a 0.25 molality aqueous CaCl 2 solution:

Chemistry

1 answer:

4vir4ik [10]2 years ago

4 0

Answer:

Explanation:

higher no of particles are in CaCl2 solution

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in the reaction 2h2 + 02 h2o what coefficient should be placed in front of h20 to balance the reaction

almond37 [142]

The coefficient is 2.
It would result in 4 hydrogen and 2 oxygen, balancing the equation.

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3 years ago

What is the [OH-]if the pH of a solution 10.62

Lerok [7]

As we know,

pH + pOH = 14
Or,
pOH = 14 - pH

Putting Value of pH,

pOH = 14 - 10.62

pOH = 3.38

pOH is converted into [OH⁻] as follow,

[OH⁻] = 10⁻pOH ∴ -pOH is in power, 10 means antilog
press shift and click log button
[OH⁻] = 10⁻³°³⁸

[OH⁻] = 0.0004168

[OH⁻] = 4.16 × 10⁻⁴

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3 years ago

Draw the atomic structure with electronic configuration of Potassium

DedPeter [7]

Answer:

Explanation:

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3 years ago

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A mixture of gasoline and air explodes when it encounters a spark. This is

Aleksandr [31]

Answer:

D. A combustion reaction

Explanation:

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3 years ago

Draw a mechanism for the reaction of methylamine with 2-methylpropanoic acid. Draw any necessary curved arrows. Show the product

Nitella [24]

Answer:

See figure 1

Explanation:

On this case we have a base (methylamine) and an acid (2-methyl propanoic acid). When we have an acid and a base an acid-base reaction will take place, on this specific case we will produce an ammonium carboxylate salt.

Now the question is: ¿These compounds can react by a nucleophile acyl substitution reaction? in other words ¿These compounds can produce an amide? 

Due to the nature of the compounds (base and acid), the nucleophile (methylamine) doesn't have the ability to attack the carbon of the carbonyl group due to his basicity. The methylamine will react with the acid-producing a positive charge on the nitrogen and with this charge, the methylamine loses all his nucleophilicity.

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3 years ago