Chemistry, 20.09.2021 21:00 samiam61

Section 1.2 – Measurement in chemistry. Think about density of different substances. PLEASE SHOW WORK Density is a physical property of a molecule that’s measured as mass per unit volume.
(a) Given that density is usually expressed in the units of g/cm3
, calculate the density of a cube of plastic that
has a mass of 2.331 g and an edge length of 1.500 cm (volume of a cube is V = l
3
).
(b) Draw two liquids in a graduated cylinder on a separate sheet of paper. You won’t submit the drawing as part
of your answer. Liquid A has a density of 1.004 g/cm3 and Liquid B has a density of 0.6223 g/cm3
. Assume they
don’t mix. Label which liquid is on top and which liquid is on bottom, and then draw the cube where you would
expect it to be if it’s dropped into the graduated cylinder with these two liquids.
Explain the location for liquid A, liquid B, and the cube in the graduated cylinder.

Answers: 2

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 10:00

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at

Answers: 1

Answer

Chemistry, 22.06.2019 19:30

Which one of the following substances would be the most soluble in ccl4? na2so4 h2o ch3ch2ch2ch2oh c4h10 hi

Answers: 1

Answer

Chemistry, 22.06.2019 20:00

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .

Answers: 3

Answer

Chemistry, 22.06.2019 20:00

Iam hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?

Answers: 1

Answer

You know the right answer?

Section 1.2 – Measurement in chemistry. Think about density of different substances. PLEASE SHOW WOR...

Questions

Chemistry, 27.06.2019 15:20

1. how many moles of sodium will react with water to produce 4.0 mol of hydrogen in the following reaction? 2na(s) + 2h2o(1) ► 2naoh(aq) + h2(g) ans:...

Chemistry, 27.06.2019 15:20

Which pyramid is the most accurate indicator of the amount of energy available at each trophic level? explain....