Explain the difference between a) constant and proportional error. b) absolute and relative error. c) population mean and sample mean d) quantitative and qualitative analysis in analytical measurement.

What situation would reduce the dissolved oxygen content of water

What is the total pressure (in atm) of all non-polar molecules in a 1.0 L vessel containing 0.10 mol of each of the following gases at 298 K; CF4, NH3, SF6, SO2. A) 0.069 atm B) 0.22 atm C) 0.16 atm D) 1.2 atm E) 4.9 atm

Write a balanced equation and a net ionic equation for combining 2AgNO3 (aq) and H2SO4 (aq)

Timothy is planning to leave home to go on a long trip. His mother told him to take his cell phone in case of an emergency. What is one way that cell phone technology may not be beneficial in this situation?

Why don't the common ions in humans (na+, k+, cl-, etc.) cluster together in cells?

What are some differences between insect larvae and worms?

Suppose that 100 grams of water at 50.0°C is placed in contact with 200 grams of iron at 30.0°C. The final temperature is 46.5°C. The specific heats of water and iron respectively, are 4.18 and 0.45 joules per gram times Celsius.

What type of overall charge, if any, does the balloon in Diagram B have? Explain how you determined your answer.

Move deep below the ocean's surface

The Ka of an acid is 1.3 x 10^-7. Based on the Ka and its relationship with Kw, what is the value of Kb? Use KaKb=Kw 1.3 x 10^-21 7.7 x 10^-15 1.3 x 10^-14 7.7 x 10^-8