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mixer [17]
4 years ago
9

An aqueous solution is tested with an electrical conductivity probe.The conductivity probe does not detect an electric current .

Which solution was most likely tested
Chemistry
2 answers:
Alika [10]4 years ago
5 0

Answer:

Sulphur (IV) Oxide solution

Explanation:

Sulphur (IV) Oxide with the chemical symbol SO_{2} is a covalent compound consisting only of nonmetals. In chemistry it is well known that Covalent compounds do not conduct electricity because they have no free electrons and ions.

Shtirlitz [24]4 years ago
3 0

Answer:

SO2 Solutions i.e Sulphur (IV) Oxide solution

Explanation:

SULFUR (IV) OXIDE is a gas with a toxic smell like burnt matches, and turn moist litmus pink. It can be manufactured as by product of copper extraction.

CONDUCTIVITY refers to measurement of ability of solutions or substance to conduct electricity.

CONDUCTIVITY PROBES ; Is used to measure ectrical conductivity in solutions and can be used to determine the total ion concentration of aqueous solution.

The conductivity probes does not detect electric current with SULPHUR (IV) OXIDE solution because charge cannot move through it when the coductivity probe was used to carry out test on it.

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A scientist claims to have a cooling apparatus kept at -100C by liquid nitrogen. Is this possible? Why or why not?
Vilka [71]

Answer:

It is not possible

Explanation:

Nitrogen is a light gas that find application in my areas including being used to keep things cold.It has a freezing point of -210°c so the scientist Nitrogen in the question at 100°c have already freezed and no longer a liquid.

5 0
4 years ago
CH3OH can be synthesized by the following reaction.
puteri [66]

Answer:

A: There is 43.12 Liter of H2 needed

B: There is 21.56 liter of CO needed

Explanation:

Step 1: Data given

CO(g)+2H2(g)?CH3OH(g)

For 1 mol of CO consumed, we need 2 moles of H2 to produce 1 mol of CH3OH

Molar mass of CO = 28.01 g/mol

Molar mass of H2 = 2.02 g/mol

Molar mass of CH3OH = 32.04 g/mol

Step 2: What volume of H2 gas (in L), measured at 754mmHg and 90?C, is required to synthesize 23.0g CH3OH?

Pressure = 754 mmHg = 0.992 atm

Temperature = 90°C = 363 Kelvin

mass of CH3OH produced = 23.0 grams

Step 3: Calculate moles of CH3OH

Moles CH3OH = mass CH3OH / Molar mass CH3OH

Moles CH3OH = 23.0 grams / 32.04 g/mol

Moles CH3OH = 0.718 moles

Step 4: Calculate moles of H2

For 1 mol of CO consumed, we need 2 moles of H2 to produce 1 mol of CH3OH

For 0.718 moles CH3OH produced, we have 2*0.718 moles =1.436 moles of H2 and 0.718 moles of CO

Step 5: Calculate volume of H2

p*V = n*R*T

with p = the pressure = 0.992 atm

with V the volume = TO BE DETERMINED

with n = the number of moles = 1.436 moles H2

with R = the gasconstant = 0.08206 L*atm/ K*mol

with T = the temperature = 363 Kelvin

V = (n*R*T)/p

V = (1.436*0.08206*363)/0.992

V = 43.12 L

Step 6: Calculate volume of CO

p*V = n*R*T

with p = the pressure = 0.992 atm

with V the volume = TO BE DETERMINED

with n = the number of moles = 0.718  moles CO

with R = the gasconstant = 0.08206 L*atm/ K*mol

with T = the temperature = 363 Kelvin

V = (n*R*T)/p

V = (0.718*0.08206*363)/0.992

V = 21.56 L

A: There is 43.12 Liter of H2 needed

B: There is 21.56 liter of CO needed

3 0
4 years ago
Please help again. Sorry!>♡
Svet_ta [14]

Matter is found every where in the universe and there is never any substance in the universe that is not composed of matter.

<h3>What is matter?</h3>

Matter is anything that has weight and occupy space. We know that matter is present in every part of the universe. Everything in the universe is composed of matter. Matter forms the basics of our study of the universe. Water, food cloths everything all are composed of matter.

The fact that matter inundates the universe has made the study of matter an unavoidable topic. As such, we can not really be able to point something that is of made up of matter. There can be no such thing!

As long as a thing does exist in the material universe, that thing is made up of matter. Look at yourself for example, matter is spread all across your body. The same occurs in the bodies of every other living thing.

The nonliving things are not also left out as they are equally composed of diverse kinds of matter that exists in the universe.

Learn more about matter:brainly.com/question/28487167

#SPJ1

8 0
2 years ago
A sample of ammonia is found to occupy 0.250 L under laboratory conditions of 27 °C and 0.850 atm. Find the volume of this sampl
Rzqust [24]

Answer:

0.193 L

Explanation:

Step 1:

Data obtained from the question.

Initial Volume (V1) = 0.250 L

Initial temperature (T1) = 27°C

Initial pressure (P1) = 0.850 atm

Final volume (V2) =?

Final temperature (T2) = 0°C

Final pressure (P2) = 1.00 atm

Step 2:

Conversion of celsius temperature to Kelvin temperature.

Temperature (Kelvin) = temperature (celsius) + 273

Initial temperature (T1) = 27°C = 27°C + 273 = 300K

Final temperature (T2) = 0°C = 0°C + 273 = 273K

Step 3:

Determination of the new volume of the sample of ammonia gas.

The new volume can be obtain by using the general gas equation as shown below:

P1V1/T1 = P2V2/T2

0.850x0.250/300 = 1xV2/273

Cross multiply to express in linear form

300 x V2 = 0.850x0.250x273

Divide both side by 300

V2 = (0.850x0.250x273) /300

V2 = 0.193 L

Therefore, the volume of the sample at 0 °C and 1.00 atm is 0.193 L

6 0
3 years ago
The form of oxygen that combines three oxygen atoms to each molecule, is found in the stratosphere and shields out harmful UV ra
Dmitry_Shevchenko [17]
This form of the oxygen molecule is Ozone, O3.

7 0
3 years ago
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