Answer:
Explanation:
To neutralize a chemical to a pH of 7 before discarding, one would require a significant amount of acids or bases. Our best guess is that the solution in itself is either an acid or a base. Neutralization with the right amount of a proper reagent can bring the pH of the solution to a neutral 7.
If the solution has a pH originally greater than 7, add a corresponding amount of acid to it. This will reduce the concentration and bring it to a neutral point. Provided one is dealing with a solution of pH less than 7, simply add a base to to bring the solution to neutrality.
<span>To a bystander, which property of a sound wave changes due to the Doppler? D. Frequency
Hope This Helps :)</span>
Vapour pressure is the pressure exerted by vapour molecules over a liquid surface.
The vapour pressure is a property
a) inter molecular forces: higher the inter molecular forces lower the vapour pressure, In this case we have taken same liquid (milk) hence in all case the inter molecular forces will be same.
b) Temperature: higher the temperature higher the kinetic energy of molecules and more the tendency of liquid molecules to convert to vapor phase.
The vapor pressure will be independent of the container being closes or open.
Thus vapor pressure will be high in Bowl B which is uncovered, and the milk is warmer than room temperature, as it has higher temperature than all other bowl of milk.
The mass of Methane gas (CH4) in kg is .571kg. You multiply the number of moles of CH4 by the atomic mass of CH4 to get you answer in grams. Then, you divide the answer by 1000 to get your answer into kilograms. <span />
Answer: 1035 grams
Explanation:
Atomic mass of lead (Pb) = 207g/mol
Number of moles of lead = 5.00 moles
Recall that:
Number of moles = (Mass in grams/molar mass)
5 moles = Mass in grams / 207g/mol
Mass in grams = 5 moles x 207g/mol
= 1035 grams
Thus, there are 1035 grams in 5.00 moles of lead