1 step Stoich
What is the molar mass of C6H12O6 ?
180 g/mol
(NH4NO3)-->N2O+2 H2O
If given 25g of NH4NO3, how much N2O gas in liters will be produced?
7 liters.
What would be the empirical formula for C14H30?
C7H15
Write the chemical name for Iron (II) Chloride Heptahydrate
FeCl2 x 7H2O
Born into slavery, he became a foremost botanist, inventor and teacher. He invented over 300 uses for the peanut and developed methods to prevent soil depletion. He was made a member British Royal Society of Arts — a rare honor for an American – and advised prominent leaders like Mahatma Gandhi and President Teddy Roosevelt on agriculture and nutrition.
George Washington Carver
How many moles are in 60g of H2O?
3.33 moles
H2O+C-->O+CH2.
Given 3 grams of water, how much CH2 will be produced?
23.3g
Is CH4 empirical or molecular?
empirical
What is an anhydrate?
The compound with all water removed.
American engineer, physician and NASA astronaut, she became the first African American woman to travel in space when she went into orbit aboard the Space Shuttle Endeavour on September 12, 1992.
Mae Carol Jemison
How many liters are in 5 moles of H2O?
112 liters
2NaOH + H2SO4 -> 2H2O + Na2SO4
Given 200g of NaOH, how much Na2SO4 would be produced?
355.1 grams
What would the empirical formula of C18H26O2?
C9H13O
A 15.67 g sample of a hydrate of magnesium carbonate was heated, without decomposing the carbonate, to drive off the water. The mass was reduced to 7.58 g. What is the formula of the hydrate?
MgCO3 5H2O
She is best known for her major contributions to the United States' aeronautics and space programs with the early application of digital electronic computers. Her work was recently recognized and featured in the movie Hidden Figures.
Katherine Johnson
How many grams of nitrogen monoxide are in 20 Moles?
600g
C + 2FeO -> 2Fe + CO2
Given 150g of FeO, how much CO2 will be produced?
45.9g
If a compound is 26.9% Nitrogen and 73.1% Florine, what is its empirical formula?
NF2
A hydrate of Na2CO3 has a mass of 4.31 g before heating. After heating, the mass of the anhydrous compound is found to be 3.22 g. Determine the formula of the hydrate and then write out the name of the hydrate.
Na2CO3 · 2H2O
She leveraged her mathematical and programming expertise to invent an accurate model of the Earth which was used as the foundation for the creation of the Global Positioning System (GPS). She was the second black woman ever to be employed by the Naval Surface Warfare Center Dahlgren Division and was inducted into the United States Air Force Hall of Fame—one of the highest honors awarded by the Air Force.
Gladys West
What is the % of Cl in CCl4?
92%
Cl2 + 2KBr -> 2KCl + Br2
Given 60g of Cl2, how much KBr will be needed?
201.42g
A compound has an empirical formula of NO3 and a molar mass of 186g/mol. What is the molecular formula?
N3O9
Given that the molar mass of Na2SO4 · nH2O is 322.1 g/mol, calculate the value of n.
10 or deca
1) The molar mass of anhydrous Na2SO4 is:
142.041 g/mol
2) The mass of water in one mole of the hydrate is:
322.1 g − 142.041 g = 180.059 g
3) Determine moles of water:
180.059 g / 18.0 g/mol = 10 mol
4) Write the formula:
Na2SO4 · 10H2O
He was a research chemist and pioneer in the chemical synthesis of medicinal drugs from plants, such as cortisone, steroids and birth control pills. He was inducted into the National Academy of the Sciences, National Inventors Hall of Fame and the American Chemical Society for his lasting work.
Percy Julian