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Alexeev081 [22]

3 years ago

7

Describe the best way Ryan can increase the rate of dissolving of lead (II) chloride in a solution.

2 answers:

eduard3 years ago

8 0

Answer: A) Increase the temperature of water the water

pychu [463]3 years ago

4 0

Solubility is the amount of solute that can dissolve in a given solvent at a specified temperature or pressure. Therefore, solubility is affected by pressure and temperature such that increase in temperature increases the rate of solubility of substances. In additional solubility depends on the molecular size of the solute such that when other factors are kept constant then a solute with small particles will dissolve more faster. Therefore, to increase the rate of solubility Ryan may; increase the temperature of water.

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Rina8888 [55]

With which one? You need to be more specific

4 0

3 years ago

Which of these objects converts light to chemical energy? four objects

Papessa [141]

It would be a ehtanol plant

3 0

3 years ago

Read 2 more answers

A metal forms the fluoride MF3. Electrolysis of the molten fluoride by a current of 3.86 A for 16.2 minutes deposits 1.25 g of t

larisa86 [58]

<u>Answer: </u>The molar mass of the metal is 96.45 g/mol

<u>Explanation:</u>

The fluoride of the metal formed is $MF_3$

The oxidation half-reaction follows:

$M\rightarrow M^{3+}+3e^-$

Calculating the theoretical mass deposited by using Faraday's law, which is:

$m=\frac{M\times I\times t(s)}{n\times F}$ ......(1)

where,

m = actual mass deposited = 1.25 g

M = molar mass of metal = ?

I = average current = 3.86 A

t = time period in seconds = 16.2 min = 972 s (Conversion factor: 1 min = 60 sec)

n = number of electrons exchanged = $3mol^{-1}$

F = Faraday's constant = 96500 C

Putting values in equation 1, we get:

$1.25g=\frac{M\times 3.86A\times 972s}{3mol^{-1}\times 96500 C}\\\\M=\frac{1.25g\times 3mol^{-1}\times 96500 C}{3.86A\times 972s}\\\\M=96.45g/mol$

Hence, the molar mass of the metal is 96.45 g/mol

7 0

3 years ago

You bought a new car and estimated that your monthly payment would be $312. However, your actual payment amount was $325. How mu

Romashka-Z-Leto [24]

Answer:

The error would be $13.

Explanation:

Given data:

Actual payment = $325

estimated payment = $312

Error = ?

Solution:

Error = Estimated payment - Actual payment

Error = $312 - $325

Error = -$13

we can discard the negative sign and consider the absolute value. The error would be $13.

5 0

3 years ago

I need help !!!!!!!!!!! Plz

pishuonlain [190]

Answer: 1: B. It will speed up the reaction.

2: A. Increase the concentration of a reactant.

3: A. They act as catalysts.

4: C. A catalyst decreases the activation energy needed for a reaction.

5: D. collision theory.

Explanation: I just took the quiz:)

5 0

3 years ago