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3 years ago

Bleaching powder was added to excess concentrated hydrochloric acid state whar was observed

Chemistry

1 answer:

anyanavicka [17]3 years ago

6 0

Answer:

Gas was evolved

Explanation:

The reaction produces chlorine gas which has a pungent smell and is dangerous in excess

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The solubility of nacl at 30°c is 36.3 g/100 g of water. what mass of nacl is contained in a saturated solution that contains 30

sleet_krkn [62]

Because a solubility is calculated for saturated solutions we can write:

36.3 g NaCl ---100g water
x g NaCl ---- 300.0 g water

x=36.3*300/100=108.9 g NaCl

7 0

3 years ago

Read 2 more answers

Which part of the periodic would contain an element with a partially filled f sublevel

noname [10]

Answer: Lanthanide and actinide series

Explanation: The elements with partially or fully filled f orbitals belong to f block elements.

f block elements include lanthanides and actinides. They are called so the lanthanides contain the first element named as lanthanum and actinides contain first element named as actinium. They are also called as inner transition elements.

All of them have general electronic configuration:

$(n-2)f^{1-14}(n-1)d^{0-10}ns^2$ , where n = 6-7

8 0

3 years ago

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How many liters of O2 at 298 K and 1.00 bar are produced in 1.50 hr in an electrolytic cell operating at a current of 0.0200 A?

stellarik [79]

Answer: 0.0069L

Explanation:

2H2O(l) ---->O2(g) + 4H+(aq) + 4e-

no of moles= it/eF

NO of moles of O2 produced = (Current in Ampere x Time in second)/ (Faraday constant x Number of electrons required)

Moles of O2 produced = (0.02x (60 x 60X1.5 s)/(96485 x 4)

= 0.0002798 moles= 2.798x 10 ^-4moles

Using ideal gas equation,

P V = n R T

Where, P is the pressure,

V is the volume,

n is the number of moles,

R is the gas constant, and T is the temperature

We have, 1 bar = 0.986923 atm

Substituting the values,

V = nRT/P = (2.798 x 10-4moles x 0.08205 L atm mol K x 298 K)/ 0.986923 atm = 0.0069L

Volume of O2 produced = 0.0069L

7 0

3 years ago

Heating curve shows temperature verses energy gain. Which parts of the curve represent a gain in potential energy?

Brilliant_brown [7]

Answer:

Those two horizontal lines.

Explanation:

Hello there!

In this case, when focusing on these heating curves, it is important to say they tend to have two constant-temperature sections and three variable-temperature sections. Thus, from lower to higher temperature, the first constant-temperature section corresponds to melting and the second one vaporization, whereas the three variable-temperature sections correspond to the heating of the solid until melting, the liquid until vaporization and the gas until the critical point.

In such a way, we infer that the boxes referred to constant temperature are referred to a gain in potential energy, that is, the two horizontal lines.

Regards!

6 0

2 years ago

Which periodic group of metals is the most reactive.

larisa [96]

Answer:

That would be the Alkali metals, and the Alkaline earth metals.

Explanation:

I just did 3.02 periodic table guided notes. np.

Brainliest is appreciated. thx.

-Hailey

5 0

2 years ago

Bleaching powder was added to excess concentrated hydrochloric acid state whar was observed​

Bleaching powder was added to excess concentrated hydrochloric acid state whar was observed