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3 years ago

How could the student obtain zinc chloride solution from the reaction mixture when all the hydrochloric acid has reacted?

Chemistry

1 answer:

Bezzdna [24]3 years ago

7 0

Answer:

zinc oxide is only sparingly soluble in water so best option is to add zinc oxide to diluted hydrocrolic acid

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Which of the following aqueous solutions has the lowest pH? Why?

jenyasd209 [6]

Answer:

HCI

Explanation:

The solution with the lowest pH is HCI with a pH value of 1. It is understood that it is more acidic because it is a strong acid.

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3 years ago

What alcohol is formed formed when the Alkene is treated with H2O in the presence of h2so4

gogolik [260]

Explanation:

Ethanol is made by the hydration of ethylene in the presence of a catalyst such as sulfuric acid (H 2SO 4).

4 0

3 years ago

Please help fasts thanks

Charra [1.4K]

Answer:

amplitude

Explanation:

The amplitude of a wave is the distance from the centre line (or the still position) to the top of a crest or to the bottom of a trough

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3 years ago

Read 2 more answers

Losing 50 dollars may affect one's level of happiness more than winning 50 dollars. This illustrates the concept of aversion

lana [24]

Answer:

B.preference

Explanation:

preference

4 0

3 years ago

A 22.8-gram sample of gas is found to have a volume of 1.5 liters at 287 K and 0.98

Oksanka [162]

Answer:

365.4 g/mol is the molar mass of this gas.

Explanation:

Using ideal gas equation:

PV = nRT

where,

P = Pressure of gas = 0.98 atm

V = Volume of gas = 1.5 L

n = number of moles of gas = ?

R = Gas constant = 0.0821 L.atm/mol.K

T = Temperature of gas = 287 K

Putting values in above equation, we get:

$(0.98 atm)\times 1.5 L=n\times (0.0821 L.atm/mol.K)\times 287K\\\\n=0.06239 mole$

Moles of gas = n = 0.06239 mol

Mass of gas = m = 22.8 g

Molar mass of gas = M

$0.06239=\frac{22.8 g}{M}$

$M=\frac{22.8 g}{0.06239 mol}=365.4 g/mol$

365.4 g/mol is the molar mass of this gas.

8 0

3 years ago