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KATRIN_1 [288]
3 years ago
10

4. What is percent error calculation used to determine?

Chemistry
1 answer:
madam [21]3 years ago
3 0

Answer:

Explanation:

You could use it for many things but one thing people use it for is the percent of failure when bonding bonds such as ionic bonds in chemistry.

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Tim wants to store 0.122 moles of helium gas at 203 kPa and 401 K. Which is the volume of the helium gas needed for storage?
algol13

 The  volume  of Helium gas needed for storage  is 2.00 L (answer C)


 <u><em> calculation</em></u>

 The volume of Helium is calculated using ideal gas equation

That is Pv =nRT

where;

 P( pressure) = 203 KPa

V(volume)=?

n(number  of moles) =  0.122 moles

R(gas constant) = 8.314  L.Kpa/mol.K

T(temperature)= 401 K

make V the  subject of the formula  by diving both side  by P

V=nRT/p

V={[0.122  moles x 8.314 L. KPa/mol.K  x 401 K]  / 203 KPa} = 2.00 L


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3 years ago
What happens to the molecules of water as it freezes?
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When Water freezes or begin to freeze, it molecules start to slow down enough that their attraction arrange into one shape till they melt again.
6 0
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Which system includes feet, pounds, gallons, and miles?<br><br> metric <br><br> customary
slavikrds [6]

Answer:

customary Is the required system

3 0
2 years ago
PLEASE HELP WILL GIVE BRAINLIEST
Phoenix [80]

Answer:

Coefficients represents no of moles while subscripts represent no of atoms.

5 0
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If the mass of a liquid reactant is 10g and the mass of a powder reactant is 5g then what should the mass of the product be acco
guapka [62]

Answer:15g

Explanation:

According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

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