After heating a 1.095 gram sample of potassium chlorate, KCIO3, the final mass of the residue was 0.682 grams. What is the percent by mass of the oxygen in the sample? 37.7 % oxygen O 62.3 % oxygen O 0.623 % oxygen O 1.65 % oxygen O 0.377 % oxygen

Q: 1. LDA CH₂ CHO CHO

A: When a ketone and an aldehyde are treated with lithium diisopropylamide (LDA), they can undergo an…

Q: concentration

A: According to the question, the concentration of ascorbic acid is ~0.001 M in lemon juice, We need to…

Q: An empty erlenmeyer flask weighs 241.3 g. when filled with water (density - 0.997 g/mol), the flash…

A: Given: Mass of empty Erlenmeyer flask = 241.3 g. Mass of Erlenmeyer flask with water = 489.1 g. And…

Q: What is the difference in mass between a nickel that weighs 4.8 g and a nickel that weighs 4.8673 g?

A: Given,  Mass of nickel = 4.8…

Q: If sucrose costs $1.20 per pound, and a bottle contains 2.00 kg, how much would you pay for a case…

A: we know that, kg and pound are related ro each other as;2.205 pounds=1 kilogram1 pound=12.205*1…

Q: 9.921*10^-20*9.714*10^-19]^2

A: Given: [9.921 X 10-20 X 9.714 X 10-19]2

Q: 4. How sizing down to Nano affect material properties?

A: Since  substances at the nanoscale level have a greater surface-to-volume ratio, which causes them…

Q: If you have 10 pieces of bread, 20 slices of ham, and 4 slices of cheese, how many sandwiches can…

A:

Q: Is 2 elements and 1 compound a combustion

A: Given: Two elements and one Compound is present for a combustion Reaction To find: whether the above…

Q: One of the reactions that occurs in a blast furnace, in which iron ore is converted to cast iron, is…

A: Answer: In this question we need to convert mass of Fe obtained into mass of Fe2O3 by using…

Q: What is the volume, in cubic centimeters (cm^3) of 1.00 kilograms of gold?

A:

Q: Deterioration of buildings, bridges, and other structures through the rusting of iron costs millions…

A:

Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is…

A: Hi, as you have posted 2 questions and have not mentioned which one you want us to solve for you.…

Q: what is 2.303

A: The rate law for first order kinetics is given by-kt= ln(Po/Pt)Where, k is the rate constant t is…

Q: What minimum amount of KO2 is required for the apparatus to produce enough oxygen to allow the user…

A:

Q: Question 11: You are a gemstone expert studying samples of various materials. Gemstone Hambergite…

A: From the given gemstones, the most massive gemstone is = Smoky Quartz (density = 2.65 g/mL) The…

Q: What would be the mass, in grams, of a sphere of titanium which is 24.68 mm in diameter? V =…

A: Given : Sphere of titanium with diameter = 24.68 mm = 2.468 cm…

Q: Calculate the cost of one pound of nitrogen from a f

A: The objective of the question is to determine the cost of one pound of nitrogen from a fertilizer…

Q: 1. CH 3 μg Br 2. H+

A: The given reactant is an epoxide. When an epoxide reacts with a Grignard reagent, an alcohol would…

Q: Write the different methods of Equivalence Calculations?

A: There are various methods of finding equivalence point. Few of them are as follows: 1) Color change…

Q: A chardonnay wine is 13.5 percent by mass alcohol. If we consume 24 fluid oz of wine, and the…

A: Percent by mass alcohol = 13.5 % Volume of wine = 24 oz 1 oz = 29.57 mL 24 oz = 709.76 mL or 0.70976…

Q: To aid in the prevention of tooth decay, it is recommended that drinking water contain 0900 ppm…

A: Given  0.900 ppm = 0.900 g/106 cm3 water dimensions of cylindrical water reservoir diameter = 5.29 x…

Q: A piece of platnium metal ore obtained was determined to have a mass of 1.6124 grams. The density of…

A:

Q: Mixtures are created by physical means (mixing a substance with another; no chemical bonding); if…

A: A mixture is a material containing two or more elements or compounds that are in close contact and…

Q: 1. O3 2. Zn, H,0*

A: The reaction product and the reagents given are,

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".