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adelina 88 [10]
3 years ago
6

What is the molarity of the solution produced when 85.6 g of hydrochloric acid (HCl) is dissolved in enough water to prepare 385

mL of solution?
Chemistry
1 answer:
Vlad1618 [11]3 years ago
7 0

Answer:

6.09 M

Explanation:

M(HCl) = 1 +35.5 = 36.5 g/mol

85.6 g * 1 mol/36.5 g = 2.3452 mol HCl

Molarity = mol solute/ L solution = 2.3452 mol/0.385 L = 6.09 mol/L =6.09 M

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Consider the balanced equation below.
Vikki [24]

Answer: The mole ratio of PCl_3 to PCl_5 is 1: 1

Explanation:

According to the balanced chemical equation ,the number of atoms of each element has to be same on reactant and product side. The stoichiometric coefficients of the species represent their number of moles.

PCl_3+Cl_2\rightarrow PCl_5

Thus in the reactants, there is 1 mole of PCl_3 and 1 mole of Cl_2 molecule. And thus there is 1 mole of PCl_5 in the product as well.

Thus the mole ratio of PCl_3 to PCl_5 is 1: 1

5 0
3 years ago
Imagine that you meet with the team of scientists who assembled the graphs in part B. What questions would you ask the team abou
worty [1.4K]

Answer:

I will ask when they made this graphics, how they measured the gas and how this affected the climate change

<u><em>BRAINLIEST</em></u>

8 0
3 years ago
Read 2 more answers
Mass of NaOH = 0.2 <br> Volume of solution 500 ml
Yuliya22 [10]
Density will be mass/volume= 0.2/500 = 0.0004
6 0
3 years ago
Calculate the MASS if the density is 2.34 g/mL and the volume is 12.50 mL.
AlexFokin [52]

Answer:

<h2>mass = 29.25 g</h2>

Explanation:

The denisty of a substance can be found by using the formula

Density =  \frac{mass}{volume}

Making mass the subject we have

<h3>mass = Density × volume</h3>

From the question

Density = 2.34 g/mL

volume = 12.50 mL

Substitute the values into the above formula and solve for the mass

That's

mass = 2.34 × 12.50

We have the final answer as

<h3>mass = 29.25 g</h3>

Hope this helps you

3 0
3 years ago
How does one calculate the pH of a solution? O A. The pH is the product of [H+] and [OH-]. O B. The pH is the negative log of [O
blagie [28]

Answer:

I believe it is A

Explanation:

pH = -log[H+] and pOH = -log[OH−].    

8 0
2 years ago
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