Answer:
d) osmotic pressure equal to that of blood
Explanation:
Answer is not a) because pH is concentration of positive hydrogen in solution but it not note all solutes. Answer is not b) because like answer a), it not note solutes without charge and, additionally it not note the pressure equilibrium when solvent flows through a membrane . Answer is not c) because it can be more or less water (solvent).
4. Isotopes of the same element
Answer: As altitude rises, air pressure drops.
Explanation: As altitude increases, the amount of gas molecules in the air decreases—the air becomes less dense than air nearer to sea level.
Answer:
Number of moles=Mass/ Molar Mass 169g÷32g/mol= 5.281 mol
