What volume measured in stp will 3.75 grams of helium gas occupy?
Answers
He = 4.0 g/mol
number of moles: 3.75 / 4.0 => 0.9375 moles
1 mole ------ 22.4 ( at STP)
0.9375 ------ ?
volume = 0.9375 x 22.4 / 1
Volume = 21 / 1
Volume = 21 L
hope this helps!
Related Questions
A beaker contains three solids: flour, sugar, and baking soda. Whichdescribes the contents of the beaker? *
The balanced chemical equation for the reaction of copper (Cu) and silver nitrate (AgNO3) is shown below. Cu + 2AgNO3 mc001-1.jpg 2Ag + Cu(NO3)2 How many moles of copper must react to form 3.50 mol of Ag?
Need help with this equation! Can anybody lay out an answer please?Use this equation; 4Fe + 3O2 -> 2Fe2O3.If 96.0 grams of oxygen react, what mass of iron was oxidized? A.) 32.0 g B.) 96.0 g C.) 167 g D.) 223 gThanks!
What is the difference between a crystalline material and an amorphous material? Give an example of each type.
Answers
hope this helps!
Answers
Ideal gas law is valid only for ideal gas not for vanderwaal gas. Charles' gas law is used here. Therefore the new volume of the balloon in the hot room is 3.68 L.
What is ideal gas equation?
Ideal gas equation is the mathematical expression that relates pressure volume and temperature. Vanderwaal gas can behave as ideal gas low pressure and high temperature.
Mathematically the relation between Pressure, volume and temperature can be given as
PV=nRT
where,
P = pressure of gas
V= volume of gas
n =number of moles of gas
T =temperature of gas
R = Gas constant = 0.0821 L.atm/K.mol
Combining Boyle's and Charles' gas law
V₁/T₁ = V₂/T₂
3.50 L ÷298 K = V₂÷313 K
V₂ = 3.68 L
Therefore the new volume of the balloon in the hot room is 3.68 L.
To learn more about ideal gas equation, here:
#SPJ6
yes, according to charles law, this would be equal to 3.68 L
concentration of calcium ions in this solution is
(1) 4.3 ppm (3) 17 ppm
(2) 8.5 ppm (4) 34 ppm
Answers
ppm = .0085103 mg / .490 kg = 0.017 ppm
B) H2 + O 2 --> 2H2O
C) 2H2 + O2 --> 2H2O
D) 2H2 + 2O2 --> 2H2O
Answers
Answer: The equation showing conservation of atoms is
Explanation:
Every balanced chemical equation follows law of conservation of mass.
This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form. This also means that total number of individual atoms on reactant side must be equal to the total number of individual atoms on the product side.
For the given chemical equations:
- Option A:
The given chemical equation follows:
There are 2 hydrogen atoms and 2 oxygen atoms on the reactant side and 2 hydrogen and 1 oxygen atom on product side.
So, this equation does not show conservation of atoms.
- Option B:
The given chemical equation follows:
There are 2 hydrogen atoms and 2 oxygen atoms on the reactant side and 4 hydrogen atoms and 2 oxygen atoms on product side.
So, this equation does not show conservation of atoms.
- Option C:
The given chemical equation follows:
There are 4 hydrogen atoms and 2 oxygen atoms on the reactant side and 4 hydrogen atoms and 2 oxygen atoms on product side.
So, this equation shows conservation of atoms.
- Option D:
The given chemical equation follows:
There are 4 hydrogen atoms and 4 oxygen atoms on the reactant side and 4 hydrogen atoms and 2 oxygen atoms on product side.
So, this equation does not show conservation of atoms.
Hence, the equation showing conservation of atoms is
An alternative fuel, E-85, can be used in some automobiles. This fuel is a mixture of 85% ethanol and 15% gasoline.
State the octane rating of a gasoline sample that performs the same as a mixture consisting of 92% isooctane and 8% heptane.
Identify the functional group in a molecule of ethanol in the alternative fuel E-85.
Answers
false?