Lab Safety and Etiquette
Gas Laws and Phase Changes
Stoichiometry
Chemical Equations
Moles
100
These are three things you need to wear in addition to long pants, long sleeved shirts, and proper shoes for every lab.
What are gloves, goggles, and aprons?
100
This is the relationship between pressure and volume.
What is an inverse relationship?
100
This is the name of the ratio that relates the coefficients of two separate substances in a balanced chemical equation?
What is the mole-to-mole ratio?
100
This type of reaction always yields carbon dioxide and water.
What is a combustion reaction?
100
This is how many of anything are in one mole.
What is 6.02 * 1023?
200
This is what you should do when glassware breaks.
What is stop moving and call over Ms. Nanfara?
200
This is represented by plateaus on heating or cooling curves.
What is a phase change?
200
In the reaction below, how many moles of oxygen gas are present?
What is 1 mole?
200
Nitrogen monoxide breaks down into its elements. These are the coefficients for each product.
What is 1 N2 and 1 O2?
200
This is what we use that relates grams to moles of a chemical formula.
What is molar mass/formula mass?
300
This is why we never rinse heated glassware right away.
What is cold water will shatter hot glass?
300
This equation relates moles of a gas to its volume, pressure, and temperature.
What is the ideal gas law? PV=nRT
300
In the synthesis of oxygen and hydrogen to make water, I start with 5 L of oxygen and excess hydrogen. How many atoms of water will I make?
What is 2.68 * 1023 atoms H2O?
300
This reaction type requires the use of phase tags to identify if the reaction will happen.
What is a double replacement reaction?
300
A 4.0 gram sample of grapes contain 61% by mass sugar. How much sugar is in this sample, in grams?
What is 2.5 grams of sugar?
400
This is what you should do before you weigh anything.
What is calibrate the scale/set it to 0?
400
This is how we calculate total heat from an object in a single phase as it increases or decreases temperature?
What is Q=mc(Tf-Ti)?
400
Silver chloride reacts with calcium. If I have 10 grams of each substance, how much calcium chloride will I make?
What is 3.87 grams CaCl2?
400
Balance the following equation:
P4O10 + H2O --> H3PO4
What is:
P4O10 + 6 H2O --> 4 H3PO4?
400
A student isolates a molecule and finds the molecule contains 2.8 grams of nitrogen and 6.4 grams of oxygen. This is the molecular formula of the substance.
What is NO2?
500
This is the purpose of the fume hood.
What is to ventilate chemicals?
500
A sample of ice is -15oC. It heats up until it boils into a gas at 150oC. How many calculations are needed to find total energy?
What is 5 calculations?
500
2 grams of mercury(II) acetate are mixed with 3 grams of potassium iodide in a beaker of water. I only collected 85% of the expected amount of mercury(II) iodide. How much mercury(II) iodide did I actually collect?
What is 2.42 grams HgI2?
500
This law defends the use of coefficients in a chemical equation.
What is the Law of Conservation of Matter/Mass?
500
Liquid mercury has a density of 13.56 g/mL. If I have 35.0 mL of liquid mercury, how many atoms do I have?
What is 1.42 * 1024 atoms of Hg?