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3 years ago

How does percent composition by mass contribute to writing a balanced equation?

Chemistry

1 answer:

Mariulka [41]3 years ago

5 0

Answer:

mass composition is very essential in obtaining a balanced equation

Explanation:

to have a completely balanced equation that means the right hand side being your reactants must be equal to the right hand side being your product. both sides need to have equal mass composition, when calculating the mass composition make sure both sides are equal if not consider revisiting the number of moles on both sides to ensure they all balance

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if atom X has 6 protons,6 neutrons and 6 electrons and aton Z has 6 protons,7neutrons and 6 electrons,atom x and atom z are isot

MakcuM [25]

The answer is 89! okay thank you

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4 years ago

How many silver (Ag) atoms are in a silver bar that is 20.0 g? A. 1.3 3 1027 Ag atoms B. 6.02 3 1023 Ag atoms C. 1.1 3 1023 Ag a

postnew [5]

C. 1.1 3 1023 Ag atoms

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3 years ago

Read 2 more answers

Convert 34.59cm3 to cubic inches (in3) given that 1 inch = 2.54cm

JulsSmile [24]

Answer:

$2.111in^3$

Explanation:

Hello,

In this case, we are able to perform this unit conversion by cubing the relationship between inches and centimetres as shown below:

$=34.59cm^3*(\frac{1in}{2.54cm})^3 \\\\=34.59cm^3*(\frac{1in^3}{16.39cm^3} )\\\\=2.111in^3$

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3 years ago

One gram-mole of methyl chloride vapor is contained in a vessel at 100°C and 10atm.(a) Use the ideal-gas equation of state to es

777dan777 [17]

Answer:

a) The volume of the system is 3.062 Liters.

b) Percentage error results from assuming ideal-gas behavior is 9.36%.

Explanation:

Using ideal gas equation:

PV = nRT

where,

P = Pressure of gas = $10 atm$

V = Volume of gas = ?

n = number of moles of gas = 1 mol

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

T = Temperature of gas = 100°C = 100+273K=373 K

Putting values in above equation, we get:

$(10 atm)\times V=1 mol\times (0.0821L.atm/mol.K)\times 373 K$

$V=\frac{1 mol\times (0.0821L.atm/mol.K)\times 373 K}{10 atm}$

V = 3.062 L

The volume of the system is 3.062 Liters.

Volume of the container = V' = 2.8 L

System volume = V = 3.062 L

Percentage error of volume:

To calculate the percentage error, we use the equation:

$\%\text{ error}=\frac{|\text{Experimental value - Accepted value}|}{\text{Accepted value}}\times 100$

$=\frac{|3.062L-2.8 L|}{2.8 L}\times 100=9.36\%$

Percentage error results from assuming ideal-gas behavior is 9.36%.

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3 years ago

Atoms are made up of ? Elements Protons Neutron Compounds Electrons

mr_godi [17]

Atoms are made up of Protons and neutrons in the nucleus, and then rings of electrons on the outer shells! so in short, protons, neutrons and electrons. :)

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4 years ago