All categories

4 years ago

What volume of 0.500 M HNO3(aq) must completely react to neutralize 100.0 milliliters of 0.100 M KOH(aq)?

1 answer:

6 0

KOH+ HNO3--> KNO3+ H2O
From this balanced equation, we know that 1 mol HNO3= 1 mol KOH (keep in mind this because it will be used later).

We also know that 0.100 M KOH aqueous solution (soln)= 0.100 mol KOH/ 1 L of KOH soln (this one is based on the definition of molarity).

First, we should find the mole of KOH:
100.0 mL KOH soln* (1 L KOH soln/ 1,000 mL KOH soln)* (0.100 mol KOH/ 1L KOH soln)= 1.00*10^(-2) mol KOH.

Now, let's find the volume of HNO3 soln:
1.00*10^(-2) mol KOH* (1 mol HNO3/ 1 mol KOH)* (1 L HNO3 soln/ 0.500 mol HNO3)* (1,000 mL HNO3 soln/ 1 L HNO3 soln)= 20.0 mL HNO3 soln.

The final answer is (2) 20.0 mL.

Also, this problem can also be done by using dimensional analysis.

Hope this would help~

You might be interested in

What is the most common metal found on Earth?

netineya [11]

Hello There

Answer: Aluminium

Reason: Aluminium is the most common metal in the earth's crust. The second most common is Iron.

I hope this helps
-Chris

7 0

4 years ago

Read 2 more answers

Maria and Jane set up a lemonade stand one summer to earn money for a trip to the beach. They noticed that the hotter the day, t

mario62 [17]

Independent variable: weather condition

dependent variable: sales of lemonade drink

controlled variable: the lemonade drink mixture.

Explanation:

From the description of the problem, the independent variable is the weather condition whereas the sales of lemonade drink is the dependent variable.

A dependent variable is one in which relies on the outcome of another variable. The independent variable does not rely on other variable. It is usually the cause in an experiment.

The weather condition is an independent variable. Maria and Jane are simply trying to project their sales(dependent variable) on the condition of the weather.
A control is that variable that does not have effect on the experiment. It is usually not the subject of an investigation and has no effect on the outcome. The Lemonade mix of lemon, sugar and water has no effect.

Learn more:

statistics:brainly.com/question/9004850

#learnwithBrainly

6 0

4 years ago

A solution was prepared by mixing 50.0 g

frez [133]

Answer:

4.78 %.

Explanation:

mass percent is the ratio of the mass of the solute to the mass of the solution multiplied by 100.

mass % = (mass of solute/mass of solution) x 100.

mass of MgSO₄ = 50.0 g,

mass of water = d.V = (0.997 g/mL)(1000.0 mL) = 997.0 g.

mass of the solution = mass of water + mass of MgSO₄ = 997.0 g + 50.0 g = 1047.0 g.

∴ mass % = (mass of solute/mass of solution) x 100 = (50.0 g/1047.0 g) x 100 = 4.776 % ≅ 4.78 %.

4 0

4 years ago

How many molecules are in 6.0 moles of methane (CH4)?

katen-ka-za [31]

Answer:

${ \tt{1 \: mole = 6.02 \times {10}^{23} \: molecules }} \\ { \tt{6.0 \: moles = (6 \times 6.02 \times {10}^{23}) \: molecules }} \\ = { \bf{3.612 \times {10}^{24} \: molecules}}$

8 0

3 years ago

When pentyne is reacted with hydrogen gas what products is formed

Tpy6a [65]

c5h10

c5h12 ds dsvvdsldnvfsndvjsbdjfs df

6 0

3 years ago