A student adds 5400.0mL of 0.15M NaOH to 201.2mL of 4.0M NaOH. What is the final [NaOH]?

Answers

Answer 1

Answer:

0.287 M

Explanation:

Multiply the concentration of each solution by the volume of each (in liters) to get the moles of NaOH in that solution.

0.15 M • 5.4000 L = 0.81 mol NaOH

4.0 M • 0.2012 L = 0.80 mol NaOH

Add the mol of NaOH together to get the total --> 0.81 + 0.80 = 1.61 mol NaOH

Divide by the total volume of solution (5400.0 mL + 201.2 mL = 5,601.2 mL = 5.6012 L)

1.61 mol / 5.6012 L = 0.287 M NaOH


Related Questions

Given this balanced equation: CS2 + 3 O2 CO2 + 2 SO2

Calculate how many moles of SO2 can be produced with when given 4 moles of CS2.

58.67 g

Now calculate how many moles of SO2 can be produced with when given 4 moles of O2.



Which one is the limiting reactant (4 moles CS2 or 4 moles of O2)? How do you know?

Answers

Answer:  The FitnessGram PACER Test is a multistage aerobic capacity test that progressively gets more difficult as it continues. The test is used to measure a student's aerobic capacity as part of the FitnessGram assessment. Students run back and forth as many times as they can, each lap signaled by a beep sound.

Explanation:

Is the kool-aid man the jar or the liquid?
I know that this is for school but like i need to know

Answers

Answer:

I think both

Explanation:

The results of photosynthesis as glucose and oxygen
A) Photosynthesis
B)Products
C)Chloroplasts
D)Glucose

Answers

Answer:

Products

Explanation:

The ocean pressure at the depth of the Titanic wreck is 400 atm . Calculate the ocean pressure in kpa?


A)3.00 × 10^4 kPa

B)4.05 × 10^4 kPa

C)4.05 × 10^3 kPa

D)4.05 × 10^2 kPa

Answers

Answer:

4.05 × 10⁴ kPa

Explanation:

To find the pressure in kPa we use the conversion

1 atm = 101.3 kPa

If 1 atm = 101.3 kPa

400 atm = 400 × 101.3 = 40520 kPa

Expressing it in standard form we have the final answer as

4.05 × 10⁴ kPa

Hope this helps you

Answer: 3.04 x 10 mm Hg

Explanation:

WHAT INVESTMENT OF A $125 WOULD HAVE THE MOST LASTING VALUE FOR YOUR FUTURE?
A pair of jordans
Some nice cologne or perfume
3 college credits at MCC BAG
a dinner with 2 or 3 people​

Answers

Answer:

a pair of jordans

Explanation:

WILL MARK BRAINLEST

Explain one way that you could lower the amount of trash that your family produces. Be specific in your example. Explain how it will actually lead to a lower amount of trash

Answers

To lower the amount of trash my family produces, we can use reusable bottles, cutlery, and dishes. This would be a better alternative to using both paper, and plastic items which would increase trash output. Reusable items like dishes can be used multiple times without throwing them away, instead of having to use plastic items that we’d throw away after using once.

If a lab requires you to use 1.25 mol oxygen gas in a chemical reaction, how many molecules of oxygen will you need?

Answers

Answer:

7.53*10²³ molecules of oxygen will you need.

Explanation:

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) that can be found in the amount of one mole of said substance. Its value is 6.023*10²³ particles per mole. Avogadro's number applies to any substance.

You can then apply the following rule of three: if by definition of Avogadro's Number 1 mole of oxygen gas contains 6.023*10²³ molecules, 1.25 moles contains how many molecules?

[tex]amount of molecules=\frac{1.25 moles*6.023*10^{23}molecules }{1 mole}[/tex]

amount of molecules= 7.53*10²³

7.53*10²³ molecules of oxygen will you need.

Select the correct answer.
How does the equilibrium change with the removal of hydrogen (H2) gas from this equation?

2H2S ⇌ 2H2(g) + S2(g)

A.
Equilibrium shifts right to produce more product.
B.
Equilibrium shifts left to produce more reactant.
C.
Equilibrium shifts right to produce less product.
D.
Equilibrium shifts left to produce less reactant.

Answers

Answer:

the guy above is wrong

Explanation:

i just did the test and got it wrong

Water circulates through Earth's water cycle by changing its _____.
A. state
B. acidity
C. turbidity
D. composition
PLsss I need answers T-T

Answers

Water moved through the water cycle by changing its state. Think, for example, of water evaporating (liquid to gas), snow sublimating (solid to gas) or melting (solid to liquid), rain (gas to liquid), sleet (liquid to solid), or snow (gas to solid).

The answer would thus be A.
A would be your answer.

C + 2ZnO → CO2 + 2zn
How many grams of
carbon dioxide will be
produced if 135 grams
of ZnO is completely
reacted?

Answers

Answer:

36.5 g CO2

Explanation:

First, Write a Balanced Equation  

C   + 2 ZnO → CO2  + 2 Zn

Useful Information,  

MW of ZnO = 81.41 g

MW of CO2 = 44.01 g

135 g ZnO x (1 mol ZnO /  81.41 g ZnO) x (1 mol CO2/2 mol ZnO) x ( 44.01 g CO2 / 1 mol CO2 ) = 36.5 g CO2

Please help me find the answer , thank you.

Answers

Answer:

the answeer is definitely silicon.

10 How does no-till farming help the environment?
A It decreases soil erosion.
C It increases fertilizer use.
B It increases soil removal.
D It decreases crop yield.

Answers

Answer: Answer is A it will decrease soil erosion

Explanation:it just will trust me

Answer:

A.

Explanation:

the soil will not loosen when u till it

Consider the table below that summarizes the types of materials that can block the 3 different types of radiation. Based on the table, at which numbered spot in the table does each type of radiation belong. 1 = beta; 2 = alpha, 3 = gamma

Answers

Answer:

D. 1 = gamma; 2 = alpha, 3 = beta

Explanation:

I apologize if this answer is late, but I got answered the question right on my "Types of Radioactive Decay" quiz :)

Hope this is helpful for others! :D

Based on the table, the type of radiation belong from 1 is the gamma rays, from 2 is the aplha rays and from 3 is the beta rays.

What are radiations?

During the radioactive decay process, some amount of energy is released in the form of particles and that radiations will known as alpha rays, beta rays and gamma rays.

Gamma ray are mare energetic rays and will shielded by only lead and thick concrete materials.Beta rays are less energetic than gamma rays and will shielded by lead, cloth, paper, wood, aluminium foil and thick concrete materials.Aplha rays have very less amount of energy in it and it will be shielded by all above mention materials.

Hence 1 is the gamma rays, 2 is the aplha rays and 3 is the beta rays.

To know more about radiations, visit the below link:

https://brainly.com/question/13909492

Which of these is a learned behavior of a dog?
1.Begging for food
2.Drinking water
3.Panting on a hot day
4.Chewing on a bone

Answers

I think the answer is 2
It’s 1 begging for food is the learned behavior. panting on a hot day is not something you pick up it’s natural. Chewing on a boy is also natural. And also drinking water

what ive learned about heat,sound and light​

Answers

Answer:

they are all in parts of our life and we need them each for surviving.

Explanation:

The songs of birds are part of a ritual to attractpotential partners of their own species. The song presents specific patterns recognized only by membersof the same species. What advantage does this present for the species of birds?

Answers

Answer:

Explanation:

Bird courtship and mating dances include many unique ways to attract mates. Learn about their courtship behaviors and why they matter. ... When birders recognize courting birds, they can be sure to avoid disturbing ... the charming songs used to woo partners can help distinguish species so birds are sure ...

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