Chemical Reactions and Stoichiometry
The total mass of substance produced by a chemical reaction is always equal to the mass of the reacting substances is a form of a law.
What is the conservation of mass law?
This formula uses Avogadro's number.
What is the species formula?
Or
What is the number of particles formula?
What is the percentage composition of Copper in Malachite (Cu2CO3(OH)2)
What is 57.48%?
These types of brackets stand for concentration.
What are square brackets?
? Atmosphere = 101.325 kPa = 760 mmHg
What is one atm?
Give me three signs a chemical reaction has occurred.
What is Bubbling, Gas/Odour/Light production, Colour Change, Precipitation, Temperature change?
The amu or molar mass of Ca(OH)2.
What is 74.096 amu?
Hydrogen gas can be produced by the reaction of zinc with hydrochloric acid. If the acid containing 2.73g of HCl is added to 3.27g of zinc. Find the limiting and excess reagent.
Is Zinc the excess reagent and HCl the limiting reagent?
A 200mL glass of champagne contains 28mL of alcohol. What is the concentration of alcohol in %(v/v)?
What is 14%?
The only excluded variable is mol in this law.
What is the Combined Gas Law?
The Stoichiometry in the formation of table salt?
What is 2:1:2?
The simplest whole-number ratio of the numbers of atoms or ions of each element present in the compound is this.
What is the Empirical Formula?
Zinc hydroxide reacts with nitric acid to produce zinc nitrate solution and water. What is the amount of water produced if there is 5g of zinc hydroxide reacted with 11g of nitric acid.
What is 1.8g of H2O?
(1.812547789)
A solution of tap water was found to contain 0.0597g of NaCl per 250mL of solution. Calculate the concentration of NaCl in parts per million.
What is 239 ppm?
I ate pi and it was really good.
What is the Universal Gas Constant?
This is a characteristic property of a substance and is the relationship between the mass of the substance and its volume.
What is Density?
How many mol of ethanol (C2H5OH) molecules are there in 9.25g of ethanol?
What is 0.201mol of C2H5OH?
What is 7.46L?
How much water would need to be added to 750mL of a 2.8M HCL solution to make a 1.0M solution?
What is 1350mL?
Or
What is 1.35L?
A can becomes crushed when first heated and then placed into a cold bucket of water because of this law.
What is Gay-Lussac's law?
Balance this chemical equation:
C10H16 + Cl2 -> C + HCl
What is
C10H16 + 8 Cl2 -> 10 C + 16 HCl
A compound of carbon and oxygen contains 27.3% carbon and 72.7% oxygen by mass. Calculate the empirical formula.
What is CO2?
A sample of nitrogen gas occupies a volume of 2.00 L at 756mmHg and 0.0 degrees Celsius. The volume increases by 2.00L and the temperature decreases to 137K. What is the final pressure exerted on the gas?
What is 189.59 mmHg?
(189.5881384)
Given 27.8mL of a 0.056molL-1 solution of sulfuric acid, calculate the mole of hydrogen ions present.
What is 3.1136*10-3 moles of H?
This diatomic gas occupies a volume of 49.6L and has a mass of 142.0g at STC.
What is Chlorine?