All categories

3 years ago

Which of the following is the correct measurement for the volume of liquid shown below?

Chemistry

1 answer:

mr Goodwill [35]3 years ago

5 0

Answer:

A. 3.5ml

Explanation:

lowest point of liquid or meniscus

You might be interested in

Calculate the percent by mass of carbon in CO2 (carbon dioxide).

FromTheMoon [43]

Answer:

The answer to your question is 27.3 %

Explanation:

Percent by mass = ?

Process

1.- Calculate the atomic mass of carbon using the periodic table

Atomic mass = 12g

2.- Calculate the molecular mass of CO₂.

Carbon = 12

Oxygen = 16 x 2 = 32

Total = 12 + 32 = 44g

3.- Calculate the percent by mass of carbon using proportions

44g -------------------- 100%

12 g ------------------- x

x = (12 x 100) / 44

x = 1200 / 44

x = 27.3 %

4 0

3 years ago

Read 2 more answers

Sixty-three grams of copper reacted with 32 grams of sulfur. this chemical reaction produced the compound copper sulfide. what w

Nuetrik [128]

The mass of, $Cu_2S$ , compound formed is 77.9g

62 grams of copper reacted with 32grams of sulfur to form copper sulfide.

$Cu + S_2 \rightarrow CuS_2$

stoichiometry of Cu to S is 2:1

We need to find the limiting reactant

Molar mass of copper = 63.5 g/mol

Molar mass of Sulfur = 32 g/mol

Number of moles of Copper = $\dfrac{mass} {molar mass } = 0.99mole$

Number of moles of Sulfur = $\dfrac{mass} {molar mass} = \dfrac{32g} {32g/mol} = 1 mole$

Since copper have lesser number of moles, therefore the limiting reagent is copper so the amount of product formed depends on amount of Cu present

stoichiometry of Copper to $Cu_2S$ is 2:1

0.99 mol of Copper forms = $\dfrac{0.99} {2}$ = 0.49 mol of $Cu_2S$

Mass of $Cu_2S$ produced = Number of moles $\times$ Molar mass

Mass of $Cu_2S$ produced = 0.49 mol $\times$ 159 g/mol = 77.9g

Learn more about limiting reagent here-

brainly.com/question/9913056

#SPJ4

6 0

2 years ago

PLEASEEEE HELP WILL MARK BRAINLIEST!!!

nevsk [136]

Answer:

C. One mole of water was produced from this reaction.

Explanation:

From the balanced equation:

It is clear that 2 mol of H₂ react with 1 mol of O₂ to produce 2 mol of H₂O.

So, if one mole of hydrogen was used in this reaction:

1/2 mol of O₂ was used in the reaction, and

1 mol of water was produced from this reaction.

So, the correct statement is:

<em>C. One mole of water was produced from this reaction. </em>

7 0

3 years ago

Read 2 more answers

Sometimes a nuclide is referenced by the name of the element followed by the:______

wolverine [178]

Answer:

The correct option is d

Explanation:

Nuclide is synonymous with groups of electrons or protons, that is, a nuclide is the grouping of nucleons.

6 0

3 years ago

A mixture of two miscible liquids with a widely different boiling point is distilled. The temperature of distilled liquid is obs

svetoff [14.1K]

Answer:

The difference in temperature is significant means that the lower-boiling liquid finishes distilling at a temperature that is too low for the higher-boiling liquid to be in vapor form yet.

Explanation:

The temperature will rise as the vapor of lower-boiling liquid rushes into the distillation head. However once the lower-boiling liquid is done distilling, there is a temperature drop because while the lower temperature liquid is done distilling, the temperature is still too low for the higher-boiling liquid to be rushing in as a vapour, so the temperature drops.

8 0

3 years ago