The sodium-potassium pump of cell function is to take 2 potassium atoms into cells and dump the 3 sodium outside cells. The pump is also needed ATP as energy to make it work. That is why the pump sometimes referred as Na3/K2 ATPase pump.
The pump cannot do these things separately. That means if there are much potassium outside cells but there is no sodium, the pump will catch and keep the potassium then wait until they find sodium inside cells. If there is no sodium inside cells, the pump will not work even if there is much potassium outside.
Answer:
1. The first three Hydrogen atoms have the same number of protons
2. The first three Hydrogen atoms are also isotopes of each other
3. The third Hydrogen atom and the first Helium atom have the same mass number
4. The second Carbon atom and the first Oxygen atom both have the same number of neutrons
Explanation:
1. The number on the top left tells us the mass number while the bottom left number tells us the atomic number. The atomic number is equal to the number of protons.
2. An isotope is when there is an equal amount of protons, but a different number of neutrons. Neutrons can be calculated by taking the mass number and subtracting the atomic number.
3. As said before, the mass number is the number on the top left of each symbol. Look for atoms with the same mass number.
4. Neutrons can be calculated by taking the mass number and subtracting the atomic number. The second Carbon atom and the first Oxygen atom both have six neutrons. 14 - 6 = 8 neutrons for the second Carbon and 16 - 8 = 8 neutrons for the first Oxygen atom.
Answer:
There are 6.024 grams of sodium hydroxide in the solution.
Explanation:
Moles of sodium hydroxide = n
Volume of sodium hydroxide solution = 251.0 mL = 0.251 L
Molarity of the sodium hydroxide = 0.600 M
Mass of 0.1506 moles of NaOH :
There are 6.024 grams of sodium hydroxide in the solution.
Molar mass of C3H8 = C 3 (12.01 g/mol) = 36.03 (g/mol)
H 8 (1.008 g/mol) = 8.064 (g/mol)
44.09 (g/mol)
74.6 g propane x 1 mole propane x 6.022 x 10
23
molecules
44.09 g propane 1 mole propane
= 1.02 x 10
24 molecules propane
Answer:E
Explanation:
The electron is expected to be in any of the 4p orbitals. For the 4p orbitals
n=4
l=1
ml=-1,0,1
ms=-1/2 or +1/2
All the ml and ms configurations are equiprobable hence the answer.