1. Look up the composition of each of the planets in our solar system, starting from Mercury and moving out to Neptune. Write the planet and the percent of each of its composition by volume, ignoring the trace amounts. (Wikipedia does most of this for you.) 2. Why does Mercury have so much hydrogen […]
Create a powerpoint based on the attached package design brief and the instructions below Assume you are the packaging engineer for a large consumer products company. In this company, the Packaging Design Briefs are initiated by the marketing group and forwarded to the Package Engineering group. You currently are working on three packaging design briefs. Copies of these […]
As you have been witnessing, historically science has been an elite road traveled by the rich, religious leaders, and the privately educated. Today, we are seeing a movement in STEM and STEAM to promote scientific endeavors in the public school system and in the community. In fact, you have just finished a community based […]
Please explain the reasoning used in the following two videos. This is to check your understanding of the concepts. You will not need to respond to other peoples work. Please use examples from the clips to give reasons to whether or not the arguments used in the scenes follow along with deductive or inductive reasoning. […]
SHOW ALL WORKAssume you dissolve 2.56g of malic acid, C4H605 in half a liter of water (500g). Calculate the molarity, molality, mole fraction, and weight percentage of acid in the solution.You want to prepare a solution that is 0.200m in Na2CO3. How many grams of the salt must you add to 125g of water? What […]
Equal volumes of a 0.10 M solution of a weak acid, HC, with Ka = 1·10-6, and a 0.20 M solution of NaOH are combined. What is the pH of the resulting solution? Hint: what will react first? What will react completely? What is the limiting reagent?
The calcium in a 200.0 mL sample of a natural water was determined by precip itating the cation as CaCzoa. The precipitate was filtered, washed, and ignited in a crucible with an empty mass of 26.6002 g. The mass of the crucible plus Cao (56077 g/mol) was 26.7134 g. Calculate the cuncentration of Ca (40.078 […]
A sample of carbon consists of the isotopes carbon-12 and carbon-13.A sample of oxygen consists of the isotopes oxygen-16 and oxygen-17.Write the formula of all the different carbon dioxide molecules that can be formed from these samples.Which molecule has the largest mass?A sample of carbon consists of the isotopes carbon-12 and carbon-13.A sample of oxygen […]
Because of the porosity of the filter paper some of the CaC2O4●H2O precipitate passes through the filter paper. Will the reported percent of the limiting reactant in the original salt mixture be reported too high or too low? Explain.
A couple of drops of water were accidentally placed on the properly folded filter paper before its mass was measured. However, in Part A.6, the CaC2O4●H2O precipitate and the filter paper were dry. As a result of this sloppy technique, will the mass of the limiting reactant be reported too high, too low, or remain […]