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kolezko [41]
4 years ago
10

c) What is the pH of the buffer system in part a when 0.030 moles of strong acid are added (without a change in volume)

Chemistry
1 answer:
pishuonlain [190]4 years ago
7 0

Answer:

remain the same

Explanation:

The pH of the buffer system remain the same when 0.030 moles of strong acid are added because buffer system has the property to resist any change in the pH  when acid or base is added to the solution. In buffer system, one molecule is responsible for neutralizing the pH of the solution by giving H+ or OH-.This molecule is known as buffer agent. If more base is added, the molecule provide H+ and when more acid is added to the solution, then the molecule add OH- to the solution.

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Jules Verne wrote the book Twenty Thousand Leagues Under the Sea. If one league - 5.556 km and one furlong - 660.0 feet, how man
Vlad [161]

Answer:

The Nautilus travel 5.52\times 10^5 furlongs.

Explanation:

Given: 1 league = 5.556 km

1 furlong = 660.0 feet

To find: 20,000 leagues = ? furlongs

Solution:

20,000 leagues = 20,000\times 5.556 km =111,120 km

1 km = 3280.84 feet

111,120 km= 111,120\times 3280.84 feet=364,566,940.8 feet

If ,1 furlong = 660.0 feet.

Then, 1 foot = \frac{1}{660.0} furlong

364,566,940.8 feet=364,566,940.8 \times \frac{1}{660.0}

=552,374.1524 furlongs\approx 5.52\times 10^5 furlongs

7 0
3 years ago
Roger has a car that accelerates at 5 m/s2. If the car has a mass 0f 1000 kg, how much force does the car produce?
jarptica [38.1K]

Answer:

<h2>The answer is 5000 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 1000 × 5

We have the final answer as

<h3>5000 N</h3>

Hope this helps you

6 0
3 years ago
Read 2 more answers
The nutrition label on the back of a package of hotdogs (purchased within the US) indicates that one hotdog contains 100 calorie
Olenka [21]

Answer:

C. 100

Explanation:

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Since the nutrition label on the back of a package of hotdogs (purchased within the US) indicates that one hotdog contains 100 calories then it truly contains such amount of calories. The standard number of calories present in a hotdog is independent of the amount eaten by individuals.

5 0
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kenny6666 [7]
A, heat is absorbed
3 0
3 years ago
how many moles of zinc cholride are produced from the reaction of three moles of xinc and an excess of hydrocholric acid
Leno4ka [110]
The answer is 3 moles  as per given balanced equation one mole Zn produces 1mole Hydrogen
when reacted with excess acid.
<span>So 3 moles Zn will give 3moles Hydroge</span> 
4 0
4 years ago
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