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3 years ago

) A magnet that’s domains remain aligned when removed from a magnetic field.

Chemistry

1 answer:

True [87]3 years ago

4 0

Answer:

Above the Curie temperature, a magnet permanently loses all or some of its magnetism. External magnetic fields: Strong, opposing magnetic fields can cause the magnetic domains to lose their orientation and relax into a lower state of energy where they are not aligned.

Explanation:

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Volume in ml of 0.220 m hbr solution is required to produce 0.0170 moles

notsponge [240]

Molality is defined as the number of moles of solute present in 1L of solution.

Molality (M) = No of moles of solute / 1 L of solution

Litre of solution = No of moles of solute / Molality

Molality = 0.220M

No of moles= 0.0170 mol

Volume in L = 0.0170/0.220

= 0.0772 L

Volume in mL = 77.27 mL

What is mole?

A mole is a very important unit of measurement used by chemists.
moles of something means there are 602,214,076,000,000,000,000,000,000,000,000 number of something.
Chemists need to measure very small things such as atoms, molecules and other particles in moles.
602,214,076,000,000,000,000,000 is called Avogadro's number, abbreviated as 6.02 x $10^{23}$

Therefore, Volume in ml of 0.220 m hbr solution is required to produce 0.0170 moles is 77.27 mL.

To know more about Molality, visit:

brainly.com/question/24065939

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5 0

1 year ago

92dm3 of a gas dissolved in a solvent. How many moles is this?

Paul [167]

Assuming its at r. t.p and pressure
no. of moles = 96/24=4moles
altho some books will say that its 23.7dm3/mole but that doesnt really matter because its the process that matters

5 0

4 years ago

James Dewar invented a special flask to keep liquid oxygen warm

Nat2105 [25]

Answer Special-Vacum

Explanation:

8 0

4 years ago

Carbon monoxide (CO) gas reacts with oxygen (O2) gas to produce carbon dioxide (CO2) gas. If 1.00 L of carbon monoxide reacts wi

alisha [4.7K]

Answer:

1.98 g

Explanation:

The balanced reaction would be:

2CO + O2 = 2CO2

We assume that the gases are ideal gas so that we use the relation that 1 mol of an ideal gas is equal to 22.4 L of the gas at STP. From that relation, we get the number of moles and we can convert it to other units. We do as follows:

1.0 L CO ( 1 mol / 22.4 L ) ( 2 mol CO2 / 2mol CO ) = 0.045 mol CO2 produced

0.045 mol CO2 ( 22.4 L / 1 mol ) = 1 L of CO2

0.045 mol CO2 ( 44.01 g / 1 mol ) = 1.98 g of CO2

4 0

3 years ago

Gaseous compound Q contains only xenon and oxygen. When a 0.100 g sample of Q is placed in a 50.0-mL steel vessel at 0 C, the pr

Paladinen [302]

The question is incomplete, here is the complete question:

Gaseous compound Q contains only xenon and oxygen. When a 0.100 g sample of Q is placed in a 50.0-mL steel vessel at 0°C, the pressure is 0.230 atm. What is the likely formula of the compound?

A. XeO

B. $XeO_4$