To solve this we assume that the gas is an ideal gas. Then, we can use the ideal gas equation which is
expressed as PV = nRT. At a constant temperature and number of moles of the gas
the product of PV is equal to some constant. At another set of condition of
temperature, the constant is still the same. Calculations are as follows:
P1V1 =P2V2
V2 = P1 x V1 / P2
V2 = 42.0 x 12.5 / 75.0
V2 = 7.0 L
Answer:
I think it's 1
Explanation:
As the balloon rises the gas inside the balloon expands because the pressure surounding the balloon drops.
Answer:
we do the best possible in our
The H3O+ concentration of the solution with a PH of 3.60 is 2.5 x10^-4 M (answer A)
<u><em>explanation</em></u>
PH is calculated using PH = - log [ H3O+] formula
Therefore - log [H3O+] = 3.60
To calculate the concentration of h3O+ ,find the antilog of 3.60
Since -log is at base of 10, the antilog of 3.60 = 10^-3.60 = 2.5 x10^-4M
Answer:
1. 2Na + 2HCl = 2NaCl =H2
2. 2Mg + O2 = 2MgO
Explanation:
make sure that the number of atoms of each element is the same on each side of the equation
1. 2Na + 2HCl = 2NaCl =H2
<em><u>on LHS of equation,</u></em>
Na = 2
H = 2
Cl =2
<em><u>On RHS of equation, </u></em>
Na=2
H= 2
Cl =2
2. 2Mg + O2 = 2MgO
<em><u>on LHS of equation,</u></em>
Mg = 2
O2 = 2
<em><u>On RHS of equation, </u></em>
Mg = 2
O2 = 2
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