Stoiched To Be Here
when completing a stoich problem what tool that Mrs Gee gave you is necessary to do these problems?
The molar roadmap (probably periodic table too)
what is Avacados number?
6.02x10^23 of anything
True or false: Lowering the temperature of the water would speed up the reaction?
false, need to heat it up!
Molar mass of Ti
47.87 g/mol
In the following chemical equation, N2(g) + 3H2(g) → 2NH3(g), 1 mole of nitrogen reacts with 3 moles of hydrogen to form how many moles of ammonia?
2 moles of ammonia
Fill in the blank with the correct representative particle: 2.78x1020_________________ of H2O
molecules
I want the chemical demo to turn from clear to red quickly when mixing two chemicals. Should I add a catalyst or increase the chemical concentration?
increase concentration
What is the units for molar mass?
g/mol
If there are 4.82 x 10¹¹ formula units of sodium hydroxide (NaOH) in your drain cleaner, how many moles are there?
8.01 x 10⁻¹³ mol NaOH
What is the representative particle of
4.89 x 1022 _________ of Na
atoms
True or false: When increasing the rate of reaction you are increasing the activation energy
162.2 g/mol
Sn(s) + 2HF(g) → SnF2(s) + H2(g)
How many moles of hydrogen fluoride are required to react completely with 75.0 g of tin?
1.26 mol HF
When converting from 1 substance to another you use the mole to mole ratio. Where do you find the values of these moles?
the coefficients from the chemical reaction
What term describing the minimum amount of energy required for a reaction to occur?
Activation energy
Calculate the molar mass of Cu(NO3)2
187.67 g/mol
How many grams of aluminum do you need to produce 3.01 x 1023 atoms of Copper?
2Al + 3CuCl2 → 3Cu + 2AlCl3
*4 minutes on the clock
8.99 g Al
3What is the mole to mole ratio of silver nitrate to copper?
2AgNO3 + Cu → Cu(NO3)2 + 2Ag
2 mol AgNO3/ 1 mol Cu
define the collision theory in your own words
more particles run into each other the more likely a chemical reaction can occur
Calculate the molar mass of Mn3(SO4)7
837.31 g/mol