Give 2 examples showing how competing equilibrium reactions affect one another. ( Le Chatlier's Principle)

Oh, no! You just spilled 85.00 mL of 1.500 M sulfuric acid on your lab bench and need to clean it up immediately! Right next to you there is a small jar labeled “15.00 g sodium bicarbonate”. Will this be enough sodium bicarbonate to neutralize the spilled sulfuric acid? Show your work and state all reasoning.

HX is a weak acid that reacts with water according to the following equation: HX(aq) + H2O(l) H3O1+(aq) + X1-(aq) Ka = 3.16e-07 What is the equilibrium concentration of hydronium ion in a solution that is 0.0538 M in HX and 0.116 M in X1- ion?

The boron trifluoride molecule is depicted as having three single bonds and an electron-deficient central boron atom. Use the concept of formal charge to suggest why a structure involving a double bond to one fluorine, which would provide an octet to the boron, is not favored.

A dilute solution of 0.05120 M was prepared when the lab temperature was 25 ^oC. On another day the solution was used when the temperature was 15 ^oC. What is the concentration of the solution at the 15 ^oC temperature?

Determine the molar solubility (S) of Ag2CO3 in a buffered solution with a pH of 3.255 using the systematic treatment of equilibrium. Ksp(Ag2CO3) = 8.46 × 10–12; Ka1(H2CO3) = 4.45 × 10–7; Ka2(H2CO3) = 4.69 × 10–11. Show all the work please. And if you're not sure, please just don't do it. thank you

For the reaction SO3(g) + NO(g) NO2(g) + SO2(g) Kc was found to be 0.500 at a certain temperature. A reaction mixture is prepared in which 0.130 mol NO2 and 0.130 mol of SO2 are placed in a 3.00 L vessel. After the system reaches equilibrium what will be the equilibrium concentrations of all four gases?

If 0.276 g of cyclohexane was obtained from 0.480 g of cyclohexanol what is the percent yield of cyclohexane? Show all calc

The following reaction is used to obtain iron from iron ore:

Fe2O3(s)+3CO(g) ? 2Fe(s)+3CO2(g)

The reaction of 172 g of Fe2O3 with 84.2 g of CO produces 71.8 g of Fe.

Calculate the theoretical yield of solid iron.

Express the mass in grams to three significant figures.

constract the titration curve of pCa versus Volume of EDTA for 50.00 ml of 0.00500 M Ca+ titrated with 0.0100 M EDTA in a solution buffered to ph 10.0

a) in the pre-equivalent point regim at 5.00 ml

b) at the equivalent point 25.00 ml

c) after equivalent point 26.00 ml

Calculate the mass of water produced when 3.8 x 103 grams of C6H12O6 are reacted with excess oxygen gas (O2). Assume the products are those expected for a typical hydrocarbon combustion, CO2 and H2O.

The empirical formula for a compound that is 36.80% sodium and the balance (the rest) selenium is NaxSey where the ratio x:y is

10.00 grams of C2H6 reacts with 10.00 grams of elemental oxygen in a typical combusion reaction. Write down the balanced reaction and determine which reactant is the limiting reagent.

In the reaction of aqueous solutions of strontium sulfide with magnesium sulfate the correct complete ionic equation is

please hepl i dont understand

Both myoglobin and hemoglobin exhibit cooperative binding to oxygen

true or false

Tropocollagen is a double helix of two left handed polypeptide chains

true or false

F actin is a polymer of G actin monomers and exhibits symmetry

true or false

Proteins have an asymmetrical tertiary structure, while multisubunit proteins can exhibit several types of symmetry

true or false

When referring to the amino acid sequences of proteins, sequence homology is the same as sequence similarity.

true or false

1)Calculate the solubility (in grams per 1.00×102mL of solution) of magnesium hydroxide in a solution buffered at pH = 12.

2)How does this compare to the solubility of Mg(OH)2 in pure water?

Show work please. round to two sig figs

Calculate the pH of a solution prepared by mixing a) 25.0 mL of 0.512 M NaOH and 34.0 mL of 0.187 M HCl b) 46.0 mL of 0.235 M KOH and 50.0 mL of 0.420 M HC3H5O2 c) 400 mL of 0.250 M NH3 and 250 mL of 0.120 M HCl