1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yulyashka [42]
3 years ago
15

Consider the point on the plot where 10.0 g of NaOH have been added. What amount of NaOH, in moles, has been added? 0.308 mol Fe

Cl3 initially present
Chemistry
1 answer:
alex41 [277]3 years ago
3 0

<u>Answer:</u> The moles of NaOH are 0.25 moles.

<u>Explanation:</u>

To calculate the number of moles, we use the following formula:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Calculations for the moles of NaOH:

Given mass of NaOH = 10 g

Molar mass of NaOH = 40 g/mol

Putting values in above equation, we get:

\text{Number of moles}=\frac{10g}{40g/mol}=0.25moles

Hence, the moles of NaOH are 0.25 moles.

You might be interested in
3. At STP, how many liters of oxygen gas are required to react completely with 3.2 x 10^22
Mrrafil [7]

The volume of oxygen required to react with 3.2 * 10²² molecules of hydrogen is 0.56 L.

<h3>What is stoichiometric law?</h3>

The stoichiometric law has been given as the representation of the moles of product and reactant in a chemical reaction are represented by the stoichiometric coefficient.

It has been known that 1 mole of a compound has 6.023 * 10²³ molecules. Thus, the moles of hydrogen gas equivalent to 3.2 * 10²² molecules has been:

6.023 * 10²³ molecules = 1 mole

3.2 * 10²² molecules = 1/6.023 * 10²³ * 3.2 * 10²² moles

3.2 * 10²²  molecules = 0.05 moles

Thus, the moles of hydrogen gas available is 0.05 moles.

From the stoichiometric law, according to the balanced chemical equation,

2 moles of hydrogen requires = 1 moles of oxygen

0.05 moles of hydrogen requires = 1/2 * 0.05 moles oxygen

0.05 moles of hydrogen requires =  0.025 moles oxygen

Thus, the moles of oxygen required is 0.025 moles. At STP, a mole of gas been equivalent to 22.4 L . Thus, the volume of 0.025 moles oxygen has been:

1 mole = 22.4 L

0.025 moles = 22.4 * 0.025 L

0.025 mole = 0.56 L

Thus, the volume of oxygen required to react with 3.2 * 10²² molecules of hydrogen is 0.56 L.

Learn more about stoichiometric law, here:

brainly.com/question/23742235

#SPJ1

7 0
2 years ago
Fusion reactors are more desirable than fission because:
Serga [27]
I believe it is A)fuel is more readily available:)
4 0
4 years ago
Read 2 more answers
a block of iron has the dimensions of 3.00 cm x 3.00 cm x 3.00 cm. it has a mass of 213 g. what is its density? a. 638 g/cm3 b.
Juliette [100K]
Volume = 3 cm × 3cm × 3cm
             =  27 cm ³

Mass  =  213 g

Density  =  \frac{MASS}{VOLUME}
 
              = <span>\frac{213 g}{27 cm ^{3} }
</span> 
<span>              =  7.89 g / cm³

Thus answer is D.</span>
8 0
3 years ago
Read 2 more answers
Please refer to image please
GarryVolchara [31]

Answer:

76.9L

Explanation:

Based on the graph, whenever the temperature increases by 100K, the volume increases by 10L, so do 769/10

7 0
2 years ago
How are models useful in describing how molecules are formed
Nady [450]

Answer:

The purpose of molecular modeling is to provide a three-dimensional image (either physical or software-based) that allows a chemist to better see the manner in which atoms and molecules can interact. These models can be used to interpret existing observations or to predict new chemical behavior.

Explanation:

It can describe shape and how they connect while forming the electrons.

6 0
3 years ago
Other questions:
  • Match each of the following terms from the Michaelis-Menten equation to its correct definition.
    11·1 answer
  • A canister of acetylene has a volume of 42 l the temperature of the acetylene is 305 k and the pressure is 780 torr determined t
    14·1 answer
  • What is cell theory and how is it applied to all living organisms?
    10·1 answer
  • Craig needs to organize, analyze, and interpret large amounts of quantitative data that he generated during an experiment. Which
    13·1 answer
  • Question 3 (11 points)
    8·1 answer
  • What volume of 0.205 M K3PO4 solution is necessary to completely react with 134 mL of 0.0102 M NiCl2?
    6·1 answer
  • Calculate the vapor pressure (in torr) at 298 K in a solution prepared by dissolving 46.8 g of the non-volatile non-electrolye g
    15·1 answer
  • Your friend had an upset stomach caused by indigestion. His mother explained to him
    12·1 answer
  • How many grams of HNO3 are in 75ml of a 8.0M solution?​
    7·1 answer
  • What substance will turn form a liquid to solid when cold at 4 degrees Celsius​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!