Guess the gibberish
Daze duh rein poe
Taste the rainbow
Name me:
Si2O3
B3N
GeI4
N3F9
disilicon trioxide
triboron mononitride
germanium tetraiodide
trinitrogen nonafluoride
what volume, in L, of 12.0M NaOH is needed to make 4.00L of 4M NaOH by dilution with water?
You would need 1.33 liters of 12.0M NaOH
write the molecular and net ionic chemical equations: include states! If no rxn occurs state no reaction.
sulfuric Acid(aq) and barium Hydroxide(aq)
H2SO4(aq)+Ba(OH)2(aq)→BaSO4(s)+2H2O(l)
2H+ + SO42−(aq) Ba2+(aq) + OH- → BaSO4(s) + 2H2O(l)
write a balanced equation for the combustion of C6H12O6
C6H12O6+6O2→6CO2+6H2O
Which of the following reactions is a double displacement reaction?
A. 2 H₂+O₂→2H₂O2
B. NaOH+ HCl→ NaCl+ H₂O
C. CH₄+2 O₂→CO₂+2H₂O
D. 2KClO₃→2KCl+3O₂
B. NaOH+ HCl→ NaCl+ H₂O
Guess the gibberish
mig heem house
Mickey Mouse
Name me:
H₂S
HClO
CH₃COOH
HF
Hydrosulfuric Acid
Hypochlorous Acid
Acetic Acid
Hydrofluoric Acid
calculate the mass of LiCl required to make 50mL of 0.750M LiCl aqueous solution? (mm=42.39g/mol)
1.59 grams of LiCl.
write a molecular and net ionic equation. If no rxn occurs state no reaction.
A solution of KNO3 is mixed with LiCl
no reaction
Which of the following statements about electrolytes is TRUE?
A) Weak electrolytes completely dissociate into ions in solution.
B) Strong electrolytes only partially dissociate into ions in solution.
C) All ionic compounds are strong electrolytes when dissolved in water.
D) Weak electrolytes produce fewer ions in solution compared to strong electrolytes.
D) Weak electrolytes produce fewer ions in solution compared to strong electrolytes.
Consider a solution made by dissolving 5.00 g of iron(III) bromide dihydrate in enough water to make a 250. mL solution. What is the concentration of the iron(III) bromide dihydrate? what is the concentration of chloride ions in this solution?
FeBr3⋅2H2O
Concentration of FeBr3⋅2H2O=(0.0151mol 0.250L) =0.0604M
Concentration of Br−= (3×0.0604M) =0.181M
sow warp hatch kits
sour patch kids
write the chemical formula for:
Potassium Superoxide
Copper(I) Sulfide
Tin(IV) Oxide
Chromium(III) Nitride
KO2
Cu2S
SnO2
Cr2N3
A 100 mL sample of sulfuric acid is titrated with 0.250M sodium hydroxide. The titration requires 40.0 mL of the sodium hydroxide solution to reach the endpoint. What is the concentration of the sulfuric acid in the sample?
H2SO4(aq)+2NaOH(aq)→Na2SO4(aq)+2H2O(l)
0.050 M
Na2SO4(aq)+CaCl2(aq)→CaSO4(s)+2NaCl(aq)
A 30 mL sample of 1.5 M sodium sulfate solution is mixed with 25 mL of a 1.0 M calcium chloride solution. The resulting reaction produces a precipitate of calcium sulfate. After the reaction, the solid calcium sulfate is collected, dried, and found to have a mass of 3.00 g. Determine the limiting reagent, theoretical yield, percent yield.
(mm of CaSO4 =136.14g/mol)
Limiting Reagent: CaCl2
Theoretical Yield:3.40g
Percent Yield: 88.24%
The combustion of ethanol can be represented by the following balanced chemical equation
C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(g)
A. If 46 g of ethanol is combusted, what is the mass of carbon dioxide produced? (Ethanol: 46.08 g/mol, CO2: 44.01 g)
B. How many moles of water are produced when 92g of oxygen is consumed in the reaction? (O2: 32.00g/mol)
C. How many moles of ethanol are required to produce 4 moles of carbon dioxide?
A. 87.91g CO2
B. 2.875moles H2O
C. 2 moles C2H5OH
Urea, CH4N2O, is a common fertilizer that is synthesized by the reaction of ammonia (NH3) with carbon dioxide:
2NH3(aq) + CO2(g) + CH4N2O(aq) + H2O(l)
In an industrial synthesis of urea, a chemist combines 136.4 kg of ammonia with 211.4 kg of carbon dioxide and obtains 168.4 kg of urea. Determine the maximum amount of urea that can be produced. What is the percent yield? How much of the excess reactant will be left over?
theo yield: 240.7kg of Urea
The percent yield is 69.96%.
The amount of excess carbon dioxide (CO₂) left over is 35.2 kg.
tech a gel pal
take a chill pill
write the chemical formula for:
A. Potassium Nitride
B. Magnesium Sulfite
C. Phosphorous Acid
D. Aluminum sulfide
A. K3N
B. MgSO3
C. H₃PO₃
D. Al2S3
Consider a solution made by dissolving 5.00g of copper(II) sulfate pentahydrate (mm = 249.68g/mol) in enough water to make a 250mL solution. what is the concentration of copper2 ions
The concentration of copper(II) ions (Cu²⁺) is
0.0800 M.
Write a balanced equation for the following:
Aqueous hydrochloric acid reacts with solid manganese (IV) oxide to form aqueous manganese (II) chloride, liquid water and chlorine gas
4HCl(aq)+MnO2(s)→MnCl2(aq)+2H2O(l)+Cl2(g)
find the percent by mass of HCl in a 12M solution that has a density of 1.10g/mL
Percent by mass of HCl=(437.52g/1100g) ×100 ≈ 39.77%
birch who'll ray yell lid he
virtual reality
A compound contains only C, H, and O. Combustion of 10.68mg of the compound yields 16.01mg CO2 and 4.37mg of H2O. The molecular weight for the compound is 76.1 g/mol. What is the molecular formula?
Empirical C3H4O3
molecular C6H8O6
Which of the following is not a strong acid?
HCl
HF
HNO3
HClO
H2SO4
HF & HClO