What should be done with the official solution (boric acid) before using it for ophthalmic purposes? Give reasons.

Q: Examples of solid gas mixtures

A: Smoke (Solid Particles of soot suspended in air)

Q: What effect does a colder temperature at a greater altitude have on an athlete's lungs and/or heart?

A: Atmospheric pressure decreases with increases in altitude. At high altitude there is less oxygen in…

Q: SURFACE TENSION: I. A decrease is due to the weakening of the hydrogen bonds of water molecules II.…

A: The answer of the above question is given below with explanation.

Q: Which of the following is not the characteristics of water? A Tiada warna Colourless B Tiada rasa IN…

A: We have to find out which is not the characteristics of water. Water has the formula H2O.

Q: Ca(OH)2 (aq) + HNO3 (aq) → H2O(1) + Ca(NO3)2 (aq) Express your answer as a chemical equation.…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Part A) 70 ∘C Express your answer to four significant figures and include the appropriate units.…

A: CONCEPT 1 mmHg = 0.00131579 atm

Q: Zn reacts with hydrochloric acid to give zinc chloride and hydrogen gas. A sample of 5 g of a Zn…

A: Final answer is in the attachmentExplanation:Step 1:First, we need to find the equation that…

Q: In the process of distillation of a mixture of acetone and water, how does the composition of the…

A: Given: Mixture of acetone and water  To Find: which will be distilled first in the mixture.…

Q: QUESTION#1: A chemist must dilute 74.6mL of 588.μM aqueous calcium sulfate (CaSO4) solution until…

A:

Q: Water molecules increase and decrease global warming. Explain

A: Introduction: Global warming is the increase in the average temperature of earth's near surface area…

Q: 3. Water has the properties of Adhesion and Cohesion. A. How many hydrogen bonds can a single water…

A: Answer c :  Alcohol molecules spills over the surface…

Q: Which method of determining salinity is least likely to be used by current oceanographers

A: The concentration of salt present in the sea-water is termed as salinity. The salinity is measured…

Q: Relate physical pharmacy to pharmaceuical formulation

A: Physical pharmacy  forms the basis for design, manufacture, and distribution of drug products and…

Q: Cite 3-5 possible applications of determining the melting point of a substance. Explain briefly.

A: In addition to that, melting point is often used to predict the partition behavior of a chemical…

Q: hydration.

A:

Q: Q1/Why do we use oil instead of water to determine the melting point of chemicals? Q2/What is the…

A: Melting point is defined as the temperature at which the compound undergoes a phase change from…

Q: Based on density, which of these four plastics would be expected to sink in water? Note: Use the…

A: Since you have posted multiple questions as per guidelines we can answer only one per session . If…

Q: 3. Water has the properties of Adhesion and Cohesion. A. How many hydrogen bonds can a single water…

A:

Q: Which is NOT directly attributable to a property of water? O The top of a lake freezing C Nutrients…

A: The top of a lake freezing indicate the phase changing property of water at different…

Q: Why rubber,cotton, wax and wood consider deformable materials? explain EACH why

A: