How many grams of carbon dioxide gas are in a 1.0-l balloon at stp?

1 answer:

7 0

Used the Ideal gas law to get the grams of carbon dioxide

PV=nRT Where p is pressure, v is volume, n is a number of moles, t is temperature and r is the ideal gas constant. The value of R is 0.0821.

Solution
First, find the mole of carbon dioxide

n= PV/RT
= 1 x 1.0 / 0.081 x (2.73 x 102)
= 1 / 0.081 x 278.46
= 1 / 22.56
= 0.045 mol

Convert the moles into grams
Grams of CO2 = 0.045 mol x 44 g/mol = 1.98 g

So the grams of CO2 is 1.98g

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Hi, someone knows how to balance the following equation, and if you can thank you if you can explain how that is done:

kari74 [83]

To begin with, the equation given is not correct.
Correct equation is : CaCO3 + HCl ---> CaCl2 + H2O + CO2
It's CaCl2 not CaCl because Ca has a valency of 2

LHS RHS
CaCO3 + HCl ---> CaCl2 + H2O + CO2
First of all, to balance the equation you must look at the number of atoms on each side of the equation.
we have 2 H on the RHS and 1 H on the LHS. So, we put a 2 on the LHS

CaCO3 + 2HCl ---> CaCl2 + H2O + CO2
Check for the LHS: 1 Ca, 1 C, 3 O, 2 H & 2 Cl on the LHS
Now check for the RHS: 1 Ca, 2 Cl, 2 H, 1 C & 3 O

Hope it helped!

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Nat2105 [25]

The answer is: Survival of the form that will leave the most copies of itself in successive generations.

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3 years ago

Propanoic acid, ch3ch2cooh, has a pka =4.9. draw the structure of the conjugate base of propanoic acid and give the ph above whi

xenn [34]

Conjugate base of Propanoic acid ( $CH_{3}CH_{2}COOH$ is propanoate where -COOH group gets converted to -CO $O^{1-}$ . The structure of conjugate base of Propanoic acid is shown in the diagram.

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