03/23/21

Limiting Reactions
4. A reaction such as the one shown here is often used to demonstrate a single replacement reaction.3CuSO4 (aq) + 2Fe (s) ---> 3Cu (s) + Fe2(SO4)3(aq)If you place 0.092 mol of iron filings in a... more
Follows • 2
Expert Answers •1

03/23/21

homework question

The elementary reaction , 2H2O(g) −⇀2H2(g) +O2(g) proceeds at a certain temperature until the partial pressures of H2O, H2, and O2  reach 0.0800 atm, 0.00450atm, and 0.00300atm, respectively. What... more
Follows • 2
Expert Answers •1

03/23/21

chemistry question

For the reaction 2NH3(g) −⇀ 3H2(g) + N2(g) , the equilibrium concentrations were found to be  [NH3] = 0.250M, [H2]= 0.580M, and [N2] = 0.750M. What is the equilibrium constant for this reaction?
Follows • 2
Expert Answers •1

03/23/21

Calculate the normality of the HF solution.
10.0 mL of a HF solution was titrated with a 0.120 N solution of KOH; 29.6 mL of KOH were required to completely neutralize the HF.
Follows • 2
Expert Answers •1

03/23/21

What is the pH of a 0.05 M solution of NaOH

Follows • 2
Expert Answers •1

03/23/21

What is the balanced net ionic equation for: Zn(s) + HCl(aq) → ZnCl2(aq) + H2(g)

Follows • 2
Expert Answers •2

03/23/21

What is the balanced net ionic equation for: HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)

Follows • 2
Expert Answers •1

03/23/21

Determine the limiting reactant, theoretical yield, and percent yield for the reaction.
Consider the reaction between calcium oxide and carbon dioxide:                                       CaO (s) + CO2 (g)  → CaCO3 (s) A chemist allows 15.27 g of CaO and 18.06 g of CO2 to react.... more
Follows • 1
Expert Answers •1

03/23/21

I have 2 problems in chemistry that I cannot figure out.
We started a new section in Chemistry and it doesn't make any sense to me, I've tried them both over 4 times and still can't figure them out.Problem one- A 0.825 g sample of sulfur hexafluoride gas... more
Follows • 2
Expert Answers •1

03/23/21

Limiting Reactions
Heating zinc sulfide in the presence of oxygen yields the following:2 ZnS + 3 O2 --> 2 ZnO + 2 SO2If 1.72 mol of ZnS is heated in the presence of 3.04 mol of O2, which reactant will be used up?
Follows • 2
Expert Answers •1

03/23/21

What is the wavelength, in nanometers, of the bright line of the hydrogen emission spectrum corresponding to the following transition? n=4 to n=3
Follows • 2
Expert Answers •1

03/23/21

What is the pH of a 0.0011M solution of Ca(OH)2?
Follows • 2
Expert Answers •1

03/23/21

Write the acidic equilibrium equation for HPO₄²⁻
Write the acidic equilibrium equation for HPO₄²⁻ (with aq ,l)
Follows • 2
Expert Answers •1

03/23/21

Construct the expression for Ka for the weak acid, CH₃COOH.
Construct the expression for Ka for the weak acid, CH₃COOH.CH₃COOH(aq) + H₂O(l) ⇌ H₃O⁺(aq) + CH₃COO⁻(aq)Ka= ----
Follows • 2
Expert Answers •1

03/23/21

What is the maximum concentration of Ni²⁺ that can be added to a 0.00700 M solution of Na₂CO₃ before a precipitate will form? (Ksp for NiCO₃ is 1.30 × 10⁻⁷)
What is the maximum concentration of Ni²⁺ that can be added to a 0.00700 M solution of Na₂CO₃ before a precipitate will form? (Ksp for NiCO₃ is 1.30 × 10⁻⁷)
Follows • 2
Expert Answers •1

03/22/21

Write the symbol of the element from which this ion is derived and Write the formula of the oxide this ion forms.
The partial (valence-level) orbital diagram for a 3+ ion is: (3+ ion) 4s 3d 
Follows • 2
Expert Answers •1

03/22/21

Chemistry: Weak Base Calculations
The pOH of an aqueous solution of 0.337 M diethylamine (a weak base with the formula (C2H5)2NH) is _____.
Follows • 2
Expert Answers •2

03/22/21

Chemistry: Ka Weak Acid Calculations
The hydroxide ion concentration of an aqueous solution of 0.337 M hydrocyanic acid is ________ 
Follows • 2
Expert Answers •1

03/22/21

What is the most likely formula for the oxide of this element?
The formula for the chloride of a certain element is XCl2.A) XO3B) X2O3C) X3O2D) XOI think it's C, is that right?
Follows • 3
Expert Answers •2

03/22/21

Choose all possible values of each quantum number for the outermost electron in an S2− ion.
I got 3 for n and 1 for l but how do I find the possible values for ml and ms?
Follows • 2
Expert Answers •1

03/22/21

What is the H3O+ concentration of a solution with a pH of 7.0? Enter your answer in scientific notation.

Follows • 2
Expert Answers •2

03/22/21

Someone help me pz
Acetylene C2H2 gas and oxygen O2 gas react to form carbon dioxide CO2 gas and water H2O vapor. Suppose you have 11.0 mol of C2H2 and 2.0 mol of O2 in a reactor. Calculate the largest amount of CO2... more
Follows • 2
Expert Answers •1

03/22/21

Please find the concentration .

1.Calculate the concentration of a solution made by diluting 30.0 mL of 3.8 M HBr to a final volume of 650.0mL. Use significant figures for final product. 2.What NaCl concentration results when... more
Follows • 2
Expert Answers •1

03/22/21

Calculate the molarity of the two solutions.

The first solution contains 0.400 mol of NaOH in 2.35 L of solution. molarity = The second solution contains 17.7g of NaCl in 695mL of solution. molarity=
Follows • 2
Expert Answers •1

03/22/21

What is the percent composition of oxygen in MgXO3? X has a mass of 28.09 g/mol
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.