Theoretical yield question please help
Calculate the theoretical yield for this experiment knowing that you are reacting 2.00 grams of CuCl2*2H2O (MM = 170.5 g/mol) with a certain mass of aluminum. The reaction is represented by: 3... more
Consider this balanced equation: C2H5OH + 3 O2 --> 2 CO2 + 3 H2O To make 0.186 moles of CO2 how many moles of O2 would be required?
What is the quantity in moles of iron atoms do you have if you have 3.40*10^23 atoms of iron. (The mass of one mole of iron is 55.85g.)
One component of a metal sculpture consists of a solid cube with an edge of length 31.3 cm. The alloy used to make cube has a density of 7190kg/m^3. Find the cube's mass.
Please help me work out this problem. I've looked at similar problems here but don't understand m^3. I don't know what it is and what it accounts for/ changes. The farthest I've gotten in the... more
2C2H6 + 7O2 → 4CO2 + 6H2O Based on the above reaction, if you react 45 grams of C2H6 with excess O2, how many grams of CO2 would be produced? Round to the nearest gram.
Which reactant will be left over if 3.00 g of iron reacts with 7.50 g of sulfur?
If 3.00 g of iron reacts completely 4.72 g of FeS is produced.If 7.50 g of sulfur reacts completely 20.56 g of FeS is produced.
chem help please
What is the mass in grams of a 4.7 L sample of nitrogen gas at 4.5oC when the pressure is 590.9 mm Hg?Answer value
chem help please
A 47.8 mg sample of butane (C4H10) gas at 333.2 K occupies a volume of 5.22 mL, what is the pressure in psi?
What is the mass of 5 moles of helium, He? Round your answer to the nearest hundredths place. _ grams
Consider the reaction: 2HCl(aq) + Ba(OH)2(aq) → BaCl2(aq) + 2H2O(l) ΔH = -118 kJ
a) Calculate the heat (in kJ) released (make sure to use the correct sign in your answer) when 106.7 mL of 0.365 M HCl is mixed with excess Ba(OH)2.b) How many grams of barium hydroxide are... more
For the reaction 2Na + 2H2O --> 2NaOH + H2, how many grams of sodium are required to produce 50g NaOH?
Please help me !
Cyanogen gas, C2N2, has been found in the gases of outer space. It can react with fluorine to form carbon tetrafluoride and nitrogen trifluoride.C2N2(g) + 7F2(g) → 2CF4(g) + 2NF3(g)How many moles... more
If you were given 2.51 kg of solid iron and 256. g of oxygen gas, what mass of the excess reactant would be left over?
An 800 g aluminum block cools from 70°c to 25°c. Given that the specific heat capacity of aluminum is 0.902 j/g °c, calculate the heat released.
What volume of oxygen gas is required to react completely with 2.07 mol of hydrogen sulfide according to the following reaction at 0°C and 1 atm?
hydrogen sulfide (g) + oxygen(g)water (l) + sulfur dioxide(g)
If 200.81 grams of H 2 O are reacted, how many moles of Ca(OH) 2 will be produced?
please show all work and solution