What is the formula mass of Al2(SO4)3?

Answers

Answer 1

Answer: Classic! I assume you have one of those handy-dandy reference tables, but if not look up the periodic table. The formula mass is the total mass of all the atoms in the equation, in other words it's all of the atomic masses added up together. So let's begin.
There are 2 aluminum atoms
Al- 2 atoms*27 <--- 27 is the estimated atomic mass number
S- 3 atoms*32
O-12 atoms*16
multiply that out...
Al- 54 grams +
S- 96 grams +
O- 192 grams+ now lets add everything together
__________
342 grams of Al2(SO4)3. Pretty cool?

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Help me with 23 fast

Answers

Answer:

a salt

Explanation:

compounds are made of molecules but we need to mention the type of compound formed.

Answer:

A salt

Because compounds are made of molecules but we need to mention the type of compound formed.

Which pair of elements will form an ionic bond?N and O
K and Br
C and Cl
Fe and Ni

Answers

K and Br can form an ionic bond. Since potassium is a metal (has a small electronegativity) and bromine is a nonmetal (has a large electronegativity), potassium can give an electron to bromine creating potassium bromide.

I hope this helps. Let me know if anything is unclear.

Final answer:

Ionic bonds are formed between a metal and a nonmetal. Among the pairs given, K and Br satisfy these conditions and will form an ionic bond.

Explanation:

The question is asking about ionic bonds, which are formed when one atom donates an electron to another atom. This occurs between a metal and a nonmetal due to their differences in electronegativity.

Looking at the options, N and O are both nonmetals, C and Cl are also both nonmetals, and Fe and Ni are both metals, so they would not form ionic bonds. On the other hand, K (a metal) and Br (a nonmetal) have a difference in electronegativity such that K can donate an electron to Br, forming an ionic bond. Therefore, the pair that would form an ionic bond is K and Br.

Learn more about Ionic Bonds here:

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In a heterogeneous mixture the materials are mixed together anda. can not be separated.
b. will be easily separated.
c. lose their own properties.

Answers

In a heterogeneous mixture the materials are mixed together and will be easily separated. The correct option among all the options that are given in the question is the second option or option "b". An example of a heterogeneous mixture is a bowl of colored candies. I hope the answer helps you.

The distance from Earth to the Sun is 1.0 _____.

Answers

The distance from Earth to the Sun is 1.0 Astronomical Unit. The actual distance of the Sun is not fixed, as it varies with the position of the Sun. It has got an elliptical orbit and this is the reason for the change of distance between the Earth and the Sun. I hope this answer helps you.

Silicon-30 contains 14 protons. It also contains ?

Answers

16 neutrons
Since the atomic mass (30) is equal to the number of protons + the number of neutrons
in an equation, it would be 30=14+x
x=16

Which compound is an electrolyte? 1. H2O 2. C2H6 3. H3PO4 4. CH3OH

Answers

An electrolyte is a substance that releases ions when it is dissolved in water. Electrolytes are divided into salts, ions and bases. In this case, the electrolyte is H₃PO₄ as it releases H+ ions and PO₄⁻³ ions when it is dissolved in water.

The electrolyte is H₃PO₄, this is because it releases H⁺ ions and PO₄⁻³ ions when it is dissolved in water

What is an electrolyte?

In chemistry, an electrolyte is a substance that has the capacity of conducting electric current by dissociating into positively and negatively charged ions, which migrate to the cathode and anode of an electric circuit, respectively.

Electrolyte releases ions when it is dissolved in water.

From the given information;

The electrolyte is H₃PO₄, this is because it releases H⁺ ions and PO₄⁻³ ions when it is dissolved in water.

Learn more about electrolytes here:

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HELP ASAPFor the reaction 2H2(g) + S2(g)<---> 2H2S(g), determine the equilibrium constant at 700oC if at this temperature, the equilibrium concentrations are as follows: [H2] = 0.208 M, [S2] = 1.13 × 10-6 M , [H2S] = 0.725 M A) 1.08 × 107 B) 3.49 C)4.55 × 10-7 D)3.22 × 106 E)441