Answer:
The density of the liquid is 3 g/mL.
Explanation:
Equation of density:
D = m/v
Plug in the known information:
D = 45 g / 15 mL
Solve:
D = 45 g / 15 mL
D = 3 g/mL
The formula here is:
pH = -log[H+]
3.6 = -log[H+]
[H+] = 2.51 x 10⁻⁴ mol / Liter
The first option is correct.
C, because liquids as gas can move on there own at different points but solids are locked in place and do not move past one another like liquids and gases do.
Answer: Mass of water required is 1268.18 g.
Explanation:
It is mentioned that the energy intake of 0.489 pounds of cheese is 3100 kJ.
And, 1 mole of water takes 44.0 kJ of energy. Hence, we will calculate the molar mass of water as follows.
Molar mass of is =
=
= 18 g/mol
This means that 18 g of water takes 44.0 kJ of energy
. Therefore, mass of water required for 3100 kJ of energy will be calculated as follows.
Mass =
= 1268.18 g of water
Thus, we can conclude that mass of water required is 1268.18 g.
Answer:
The answer is C.
Explanation:
In the chemical equation in C, there are 15 Carbon atoms and 1 Phosphorus atom in PC15, and 3 Hydrogen atoms and 6 Oxygen atoms in 3H2O on the left hand side. On the right hand side, there are 3 Hydrogen atoms, 1 Phosphorus atom and 46 Oxygen atoms in H3PO46, and 5 Hydrogen atoms and 5 Chlorine atoms in 5HCl.
Therefore, tallying up, there are 6 Oxygen atoms on the left hand side and 46 Oxygen atoms on the right hand side. This means the chemical equation in C is unbalanced.
Hope this helped!