Chapter 1, Problem 1.33E

A chemist must dilute 51.9 mL of 65.6 µM aqueous mercury(II) iodide (HgI,) solution until the concentration falls to 21.0 µM. She'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in liters. Round your answer to 3 significant digits. MAR W MacBook Air 80 888 DII DD F1 F5 F6 F7 F8 F9 F10 F1 F2 F3 F4

A chemist must dilute 70.4 mL of 9.54 mM aqueous calcium sulfate (CaSO4) solution until the concentration falls to 6.00 mM. She'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in liters. Round your answer to 3 significant digits. L

Use the References to access important values if needed for this question. A general chemistry student found a chunk of metal in the basement of a friend's house. To figure out what it was, he used the ideas just developed in class about density. First he measured the mass of the metal to be 311.2 grams. Then he dropped the metal into a measuring cup and found that it displaced 15.9 mL of water. Calculate the density of the metal. Density = g/ mL Use the table below to decide the identity of the metal. This metal is most likely Densities of Some Common Substances Substance Density (g/mL) Water 1.00 Aluminum 2.72 Chromium 7.25 Nickel 8.91 Сopper 8.94 Silver 10.50 Lead 11.34

A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 × 10 kg. 20 Use this information to answer the questions below. Be sure your answers have the correct number of significant digits. What is the mass of 1mole of raindrops? How many moles of raindrops are in the Pacific Ocean?

The mass unit associated with density is usually grams. If the volume (in ml or cm3) is multiplied by the density (g/mL or g/cm3) the volume units will cancel out, leaving only the mass units. Keep in mind that the volume and density must use the same volume unit for the cancellation. If a large marshmallow has a volume of 2.50 in3 and density of 0.242 g/em3, how much would it weigh in grams? 1 in3=16.39 cm3. Express your answer in grams to three significant figures.

132. The following statements are all true. (a) Jessica's house is 5 km from the grocery store. (b) Jessica's house is 4.73 km from the grocery store. (c) Jessica's house is 4.73297 km from the grocery store. How can they all be true? What does the number of digits communicate? What sort of device would Jessica need to make the claim in each statement?

Size of an Atom Length of galvanized iron (cm)                                                   2.7cm Width of galvanized iron (cm)                                                     1.4 cm Mass of galvanized iron to start (g)                                           1.50 grams Mass of iron with zinc removed (g)                                          1.40 grams Mass of zinc removed (g)                                                              .10 grams Using the above calculations answer the following questions:   The density of zinc is 7.14 g/cm3 . Using the density formula, calculate the total volume of zinc removed from the galvanized iron______? The galvanized iron has two sides. Therefore half of the volume calculated above are coating each side of the galvanized iron. What is the volume of zinc on each side of the galvanized iron__________? The coating on each side of the piece of galvanized iron has the shape of a rectangular solid with a very small thickness or height.…

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I need help with convertion problems in chemistry, Suppose you need 8.5m of Grade 70 tow chain, which has a diameter of 3/8" and weighs  2.16/kgm, to tow a car. How would you calculate the mass of this much chain? Set the math up. But don't do any of it. Just leave your answer as a math expression.   could you walk me through how to answer this?