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2 years ago

Which products would result from the double replacement reaction between mgcl2(aq) and na2co3(aq)?

1 answer:

8 0

Double displacement reactions are when the cations and anions of 2 compounds are exchanged. Cation of one reactant will form a new product with the anion of the other reactant and vice versa.
MgCl₂ --> Mg²⁺ + 2Cl⁻
Na₂CO₃ --> 2Na⁺ + CO₃²⁻
the cations and anions are exchanged therefore double displacement reaction is as follows;
MgCl₂(aq) + Na₂CO₃(aq) --> MgCO₃(s) + 2NaCl(aq)

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Automobile batteries are filled with an aqueous solution of sulfuric acid. What is the mass of the acid (in grams) in 800. mL of

Grace [21]

Answer:

391.462 g

Explanation:

First, let's calculate the total mass of the solution by the definition of density (d)

d = m/V, where m is the mass in gram and V the volume in mL. So for the given solution

1.285 = m/800

m = 1028 g

The mass of sulfuric acid will be:

0.3808x1028 = 391.462 g

7 0

2 years ago

How many O2 molecules are present in 0.470 g of oxygen

adoni [48]

The number of molecules in 16 grams of oxygen gas is 3.01*10^23, equal to half of Avogadro's number. ... How many molecules of oxygen (o2) are present in 16.0 g of o2…

5 0

2 years ago

Give the product for the reaction of 1-butene with methanol in the presence of acid. The mechanism is the same as the mechanism

Nuetrik [128]

Answer:

The final result is 2-methoxybutane.

Explanation:

1-butene has a carbon-carbon double bound between C1 and C2.

When it will react with methanol, in the presence of an acid, the result will be an ether.

C4H8 + CH3OH → C5H12O

An acid-catalyzed ether synthesis from alkenes is limited by carbocation stability.

In the first step, the double bound will disappear. The C2 atom will be a C+ atom, this becaus it has only 3 bounds and not 4.

This C+ -atom will atract the O- atom to form an ether. The CH3 of methanol will bind on the C3 atom, this is the most stable position.

2-methoxybutane will be formed. It has a structural formula of C5H12O

1-methoxybutane will not be formed, because it's less stable.

1-butanol will be formed when water is added to 1-butene. The mechanism has the same principle but not the same product.

1-ethoxybutane and 2-ethoxybutane have a structural formula of C6H14O, this will not be the final result.

The final result is 2-methoxybutane.

8 0

2 years ago

What is the maximum volume of a 0.788 M CaCl2 solution that can be prepared using 85.3 g CaCl2

LekaFEV [45]

Molar mass CaCl₂ = 111.0 g/mol

number of moles:

n = mass of solute / molar mass

n = 85.3 / 111.0

n = 0.7684 moles of CaCl₂

M = n / V

0.788 M = 0.7684 / V

V = 0.7684 / 0.788

V = 0.97512 L

hope this helps!

3 0

2 years ago

An ion has 24 protons and 19 electrons. Write the symbol for this ion.

Lerok [7]

Answer:

Explanation:

it hs 5 more protons thant electrons, so it has a positive charge of 5

5 0

2 years ago