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
DerKrebs [107]
3 years ago
15

Calculate the quantitative concentration of HCl in the solution if in the reaction of 500 cm3 the solution with AgNO3 produces 0

.7 g of AgCl AgNO3 + HCl -------> AgCl + HNO3
Chemistry
1 answer:
ss7ja [257]3 years ago
8 0

Answer:

9.77x10⁻³M HCl

Explanation:

<em>Assuming the solution of AgNO₃ is in excess:</em>

<em />

Based on the chemical equation:

AgNO₃ + HCl → AgCl + HNO₃

We must find the moles of AgCl that will be produced. With the moles and knowing 1 mole of AgCl is produced from 1 mole of HCl we can find the moles of HCl and its concentration as follows:

<em>Moles AgCl -Molar mass: 143.32g/mol-:</em>

0.7g AgCl * (1mol / 143.32g) = 4.88x10⁻³moles AgCl = Moles HCl

As the volume of the solution is 500cm³ = 0.500L, the concentration of HCl is:

4.88x10⁻³moles HCl / 0.500L =

<h3>9.77x10⁻³M HCl</h3>
You might be interested in
What are some non examples of biodiversity
zhenek [66]
A monocrop is a non example of biodiversity because it contains only one species, such as all corn, therefore there is very little biodiversity.
8 0
3 years ago
Read 2 more answers
What is the mass of 2.13 moles of lithium arsenate
Helga [31]
Lithium Arsenate - Li3AsO4 (160g/mol). So, it’s 2,13 mol * 160 g/mol = 340,8 g.
8 0
3 years ago
29. What is E for a system which has the following two steps:
jasenka [17]

Answer:

Zero

Explanation:

Recall that;

E = q + w

Where;

q = heat, w = work done

When heat is absorbed by the system q is positive

When heat is evolved by the system q is negative

When the system does work, w is negative

When work is done on the system w is positive

Step 1

ΔE1= 60 KJ + 40 KJ = 100KJ

Step 2

ΔE2= (-30 KJ) + (-70 KJ) = (-100) KJ

ΔE1 + ΔE2= 100KJ + (-100) KJ = 0KJ

4 0
3 years ago
One of the emission spectral lines for Be3+ has a wavelength of 253.4 nm for an electronic transition that begins in the state w
4vir4ik [10]

Answer:

4

Explanation:

Relationship between wavenumber and Rydberg constant (R) is as follows:

wave\ number=R\times Z^2\frac{1}{n_1^2} -\frac{1}{n_1^2}

Here, Z is atomic number.

R=109677 cm^-1

Wavenumber is related with wavelength as follows:

wavenumber = 1/wavelength

wavelength = 253.4 nm

wavenumber=\frac{1}{253.4\times 10^{-9}} \\=39463.3\ cm^{-1}

Z fro Be = 4

39463.3=109677\times 4^2(\frac{1}{n_1^2} -\frac{1}{5^2})\\39463.3=109677\times 16(\frac{1}{n_1^2} -\frac{1}{5^2})\\n_1=4

Therefore, the principal quantum number corresponding to the given emission is 4.

6 0
3 years ago
Un átomo X posee 29 protones y de carga +2 ¿Cuántos electrones tiene?
lesya [120]

Responder:

27

Explicación:

Dado que:

Número de protones en el átomo X = 29

Carga en el átomo X = +2

Si no hay cargo neto;

número de protones = número de electrones

Sin embargo, dado que el átomo X tiene una carga de +2 (dando 2 electrones).

Por lo tanto,

Número de electrones = número de protones - número de carga en el átomo)

Número de electrones = (29 - 2) = 27

4 0
3 years ago
Other questions:
  • A substance that cannot be separated into simpler substances by physical or chemical means is a
    15·1 answer
  • At a certain temperature this reaction follows first-order Kinetics with a rate constant of 0.0660
    13·1 answer
  • sample of saline contains 45 ml of saline in 128 ml of water. What is the percent by volume of the solution?
    8·1 answer
  • What happens if you don't get nutrients in your body
    11·2 answers
  • A(n) ____________ is a variety of an element with the same number of protons and electrons as the other types of the element but
    5·1 answer
  • In the reactants there is a curvy arrow, what does the direction of the arrow indicate?
    15·2 answers
  • Chemical reactions guided reading and study describing chemical reactions what are chemical equations ci 2.2
    15·1 answer
  • Animal that hunts and kills other animals for food. It is a consumer ( carnivore or omnivore )?
    11·2 answers
  • A process with a negative change in enthalpy and a negative change in entropy will generally be: _________________
    14·1 answer
  • True/False Chemistry
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!