H2 + O -> H2O
I'm pretty sure that's the answer, just tell me if I'm wrong.
When the balanced reaction equation is:
P4O10 + 6H2O→ 4 H3PO4
when we have the mass of P4O10 = 10 g and the molar mass of P4O10=284 g/mol & we have the molar mass of H3PO4 =98 g/mol so we can get the mass of H3PO4 by substitution by:
mass of H3PO4 = (mass of P4O10)/(molar mass of P4O10) * 4(mol of H3PO4)*molar mass of H3PO4
∴mass of H3PO4 = (10 / 284) * 4 * 98 = 13.8 g
D. Drop in barometric pressure, warm ocean water, humid air. The low pressure brings in a cool air mass causing collision of two different masses.
My father rode out a typhoon near Okinawa WWII, onboard the battleship USS Missouri BB-63.
Violent pitching, alarms going off for approaching capsize pitch. The captain came on loudspeaker “ don’t worry men, land is near... about a mile straight down”.
Answer: I read about this in science once...
Explanation:
Shower meteors come from the dust released by comets as they travel through our solar system. The dust spreads out along the comet's orbit and forms an elliptical trail of debris that passes around the sun and crosses the orbits of the planets.
Answer:
0.65atm or 65.3kPa
Explanation:
Given parameters:
Initial volume of He = 500mL
Initial pressure = 98kPa, this gives 0.967atm
Final volume = 750mL
Unknown:
Final pressure = ?
Solution:
A good grasp of Boyle's law should suffice here. The law states that:
"the volume of a fixed mass of gas varies inversely as the pressure changes if the temperature is constant".
Mathematically;
P₁ V₁ = P₂ V₂
where P and V are pressure and volume
1 and 2 are the initial and final states;
Now, solve for the unknown P₂;
0.967 x 500 = P₂ x 750
P₂ = 0.65atm or 65.3kPa
