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Alinara [238K]
3 years ago
6

What is the formula of tin (II) acetate?

Chemistry
2 answers:
mash [69]3 years ago
8 0

Answer:

Sn(C2H3O2)2

Explanation:

C2H3O2 is Acetate

Sn is tin

Acetate has a -1 charge

In order for tin to have a +2 charge, we need two acetates

So we write it as (C2H3O2)2

You just leave Sn blank because of the roman numeral and since it is a transition metal.

So the answer is Sn(C2H3O2)2

Hoochie [10]3 years ago
6 0

Answer:

\boxed {\boxed {\sf Sn (C_2 H_3 O_2)_2}}

Explanation:

First, find what tin and acetate is.

  • Acetate: C₂H₃O₂
  • Tin: Sn

Next, find the charge on acetate, which is -1.

The Roman Numeral 2 in parentheses after tin (II), signifies that the tin has a charge of +2.

We need to balance the charges, so they will equal 0.

  • 1 acetate= -1
  • Tin = +2

The best way to balance is by using 2 acetate molecules

  • 2 acetate = -2
  • Tin = +2
  • -2 +2=0

If we want 2 acetate molecules, we must add a subscript of 2 after acetate.

  • Acetate: C₂H₃O₂
  • 2 Acetate: (C₂H₃O₂)₂

Add the tin (Sn) in front

  • Tin (II) Acetate: Sn (C₂H₃O₂)₂

The formula for tin (II) acetate is Sn (C₂H₃O₂)₂

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Hardness in groundwater is due to the presence of metal ions, primarily Mg2 and Ca2 . Hardness is generally reported as ppm CaCO
Maslowich

Answer:

  • 0.0144 M
  • 1440 ppm

Explanation:

Ca(In)²⁺ + EDTA → Ca(EDTA)²⁺ + In

We use the volume of EDTA consumed in the titration to <u>calculate the moles of Ca⁺² ions</u>:

  • 0.012 L * 0.0600 M * \frac{1molCa^{+2}}{1molEDTA} = 7.20x10⁻⁴ mol Ca⁺²

Now we <u>calculate the molarity</u>:

  • 7.20x10⁻⁴ mol Ca⁺² / 0.050 L = 0.0144 M

To calculate in ppm, we <u>use the moles of Ca⁺² and convert to mg of CaCO₃:</u>

  • 7.20x10⁻⁴ mol Ca⁺² = 7.20x10⁻⁴ mol CaCO₃
  • 7.20x10⁻⁴ mol CaCO₃ * 100g/mol * \frac{1000mg}{1g} = 72 mg CaCO₃

Finally, <u>the concentration in ppm</u> is:

  • 72 mg CaCO₃ / 0.050L = 1440 ppm
5 0
2 years ago
-K-12 Scientific Method
hjlf

Answer:

The correct answer is - scientific law.

Explanation:

A scientific law is an explanation to a well observed phenomenon of the world which is found true every time tested and universal proven fact, but the reason behind the phenomenon and its existence.

To explain the scientific law there will be various explanation that are called scientific theory, however these theories can not be proved.

Thus, the correct answer is - scientific law.

8 0
3 years ago
A 7.5 L cylinder contains 5 moles of gas at a temperature of 274°C. What is its pressure in kiloPascals (kPa)?
AleksAgata [21]
<h3><u>Answer;</u></h3>

 = 3032.15 kPa

<h3><u>Explanation;</u></h3>

Using the equation;

PV = nRT , where P is the pressure,. V is the volume, n is the number of moles and T is the temperature and R is the gas constant, 0.08206 L. atm. mol−1.

Volume = 7.5 L, T = 274 +273 = 547 K, N = 5 moles

Therefore;

Pressure = nRT/V

               = (5 × 0.08206 × 547)/7.5 L

               = 29.925 atm

But; 1 atm = 101325 pascals

Hence; Pressure = 3032150.63 pascals

                            <u>= 3032.15 kPa</u>

               

3 0
3 years ago
Which of the following best explains how the results of Rutherford’s experiment affected Thomson’s widely-accepted atomic model?
hichkok12 [17]

Explanation:

Thomson's suggested the plum pudding model of the atom in which the atomic space is made up of electrons surround by positive charges.

Rutherford in his gold foil experiment revised the plum pudding model of the atom;

  • He discovered that most of the alpha particles passed through the foil while a few of them were deflected back.
  • To explain this observation, he suggested the atomic model of the atom.
  • In this model, an atom is made up of a small positively charged center where nearly all the mass is concentrated.
  • Surrounding the nucleus is the extranuclear part made up of electrons.
5 0
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Where is the energy for cell division generated?
Zepler [3.9K]
Mitochondria because is the power house for cell,site for respiration or energy release.
4 0
3 years ago
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