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3 years ago

How would you know if a precipitate was formed without performing the chemical reaction

1 answer:

4 0

Hey there

Thats easy

Precipitation occurs when cations and anions in aqueous solution combine to form an insoluble ionic compound called precipitation. So, you can refer to a solubility chart or draw polar/nonpolar lewis structures, that might be helpful.
Remember water is polar so polar molecules will dissolve in water

You might be interested in

What color does white light break into

Scrat [10]

Answer:

white light is separated into its component colors red, orange, yellow, green, blue and violet.

Explanation:

Visible light, also known as white light, consists of a collection of component colors. These colors are often observed as light passes through a triangular prism.

7 0

3 years ago

A cell created by cloning is genetically A identical to its parent. B identical to its stem cell. C unique because it is a mixtu

stiks02 [169]

Answer: Identical to its parent.

Explanation:

The cloning can be defined as the process by which genetically identical individuals of an organism is produced either artificially or naturally.

The cloning in case of biotechnology refers to the creating the clones of organisms or copies of cells or DNA of the parent cell that is being used in the process.

The parent cell is cloned and numerous copies is made just like that of the asexual reproduction in the nature.

Example: Dolly the sheep.

8 0

3 years ago

Determine the moles of chlorine needed to react with 38.9 of iron (III) chloride.

lys-0071 [83]

Answer: 0.360 moles

Explanation:

To calculate the moles :

$\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}$

$\text{Moles of} FeCl_3=\frac{38.9g}{162.2g/mol}=0.240moles$

The balanced chemical reaction is:

$2Fe+3Cl_2\rightarrow 2FeCl_3$

According to stoichiometry :

2 moles of require = 3 moles of

Thus 0.240 moles of $FeCl_3$ will require= $\frac{3}{2}\times 0.240=0.360moles$ of $Cl_2$

Thus 0.360 moles of chlorine needed to react to produce 38.9 of iron (III) chloride.

6 0

3 years ago

For the following reaction, 7.43 grams of methane (CH4) are allowed to react with 27.6 grams of carbon tetrachloride. methane (C

NikAS [45]

Answer:

30.4 grams of CH2Cl2 will be formed

Explanation:

Step 1: data given

Mass of methane = 7.43 grams

Molar mass of methane (CH4) = 16.04 g/mol

Mass of CCl4 = 27.6 grams

Molar mass of CCl4 = 153.82 g/mol

Step 2: The balanced equation

CH4 + CCl4 → 2CH2Cl2

Step 3: Calculate moles

Moles = mass / molar mass

Moles methane = mass methane / molar mass methane

Moles methane = 7.43 grams / 16.04 g/mol

Moles methane = 0.463 moles

Moles CCl4 = 27.6 grams / 153.82 g/mol

Moles CCl4 = 0.179 moles

Step 4: Calculate limiting reactant

For 1 mol CH4 we need 1 mol CCl4 to produce 2 moles CH2Cl2

CCl4 is the limiting reactant. It will completely be consumed. (0.179 moles). Ch4 is in excess. There will react 0.179 moles. There will remain 0.463 - 0.179 = 0.284 moles

Step 5: Calculate moles CH2Cl2

For 1 mol CH4 we need 1 mol CCl4 to produce 2 moles CH2Cl2

For 0.179 moles CCl4 we'll have 2*0.179 = 0.358 moles CH2Cl2

Step 6: Calculate mass CH2Cl2

Mass CH2Cl2 = 0.358 moles* 84.93 g/mol

Mass CH2Cl2 = 30.4 grams

30.4 grams of CH2Cl2 will be formed

3 0

4 years ago

The process by which molecules of water vapor in the air become liquid water answers

Musya8 [376]

I believe that is condensation

6 0

4 years ago