Answer:
8.31moles of H2O
Explanation:
Avogadro's hypothesis gives us an excellent understanding that 1mole of any substance contains 6.02x10^23 molecules. This means that 1mole H2O also contains 6.02x10^23 molecules.
Now, if 1 mole of H2O contains 6.02x10^23 molecules
Therefore, Xmol of H2O will contain 5.00x10^24 molecules i.e
Xmol of H2O = (5.00x10^24)/6.02x10^23 = 8.31moles of H2O
Answer:
first choice
Explanation:
energy is written on the left side is its absorbed
2 elements came together so bonds are formed.
Answer:
Japanese is educated place so they invent those things which are really good and helpful...
in my opinion it is safe....
Nucleus is present at the centre of atom. It contains protons and neutrons. It is very small as compared to the atom.
Explanation:
Step 1:
Data obtained from the question. This include the following:
Initial pressure (P1) = 1atm
Initial temperature (T1) = 0°C = 0°C + 273 = 273K
Final temperature (T2) = 280°C = 280°C + 273 = 553K
Final pressure (P2) =...?
Step 2:
Determination of the new pressure of the gas.
Since the volume of the gas is constant, the following equation:
P1/T1 = P2/T2
will be used to obtain the pressure. This is illustrated below:
P1/T1 = P2/T2
1/273 = P2 / 553
Cross multiply
273x P2 = 553
Divide both side by 273
P2 = 553/273
P2 = 2.03atm
Therefore, the new pressure of the gas will be 2.03atm
