Chapter 3, Problem 3.1QAP

Which unit, megagrams or grams, would be more suitable for expressing the mass of an automobile? Why?

As a material expands its weight per unit of volume (also called density) _______ ? Group of answer choices Changes unpredictably Decreases Increases Stays the same

Include proper units, sig figs, and all calculation work.

In an experiment in which the percent loss on drying in a sample was determined, the following data were obtained: What is the percent loss on drying in the sample? * Answer must be expressed with the correct number of significant figures

Which of the following is an inexact quantity?(c) the number of grams in a kilogram

The mass of a beaker is 5.333 g. After 5.00 mL of a concentrated hydrochloric acid solution is pipetted into the beaker, the combined mass of the beaker and the hydrochloric acid sample is 11.229 g. From the data, what is the measured density of the hydrochloric acid solution?

Complete the following table by calculating values for the two serial dilutions

Write the equation for Abs = slope (M) + b using the actual values for slope and y-intercept.

In the table below, use your most important scientific instrument (your calculator) to fill in the little boxesthat are highlighted:2. Data TableIdentity of Dehydrated salt (for afterwards) ________________________________ Mass of empty dish 70.874g Mass of dish + hydrated salt 71.346g Mass of hydrated salt   Mass of dish + dehydrated salt XXXXXXX     a) first heating 71.194g     b) second heating 71.174g Mass of dehydrated salt   Mass of water lost   Wt. % of water in hydrated salt   Moles of dehydrated salt   Moles of water driven off   Empirical formula of hydrated salt   a. Show the calculation for obtaining the mass of your hydrated salt used.b. Show the calculation for obtaining the mass of your dehydrated salt after the second heating.c. Show the calculation for obtaining the mass of water that was driven off (based on secondheating).d. Show the calculation for obtaining the weight percent of water that was in your hydrated salt.e. Show the…