10. How much methanol (CH₃OH, in grams) can be formed from 49.2 mg of hydrogen? Assume excess CO.

CO(g) + 2H₂(g) → CH₃OH(g)

-Consider the following balanced chemical equation: 2N₂H₄(g) + N₂O₄(g) → 3N₂(g) + 4H₂O(g)

a. How many moles of water form from 0.438 moles of N₂O₄?

b. How many moles of water form from 0.438 moles of N₂H₄?

c. How many moles of nitrogen form from 0.438 moles of N₂O₄?

d. How many moles of nitrogen form from 0.438 moles of N₂H₄?

What is the enthalpy of the following reactions? Use the appendix in your text book using heat formatino values.

1. SO3+ H2O-----H2SO4

2. 3K2O2+3H2O----6KOH+O3

3. Fe3O4+8HCL----2FeCl3+FeCl2+4H2O

1: Select all of factors that affect the rate of a chemical reaction:

Why is the region of the electromagnetic spectrum between 8 and 13 um known as the "atmospheric window"? Why are gases that absorb thermal IR in this range of particular concern? What are some of those gases?

A.) Write the equation which describes the reaction between crystal violet and hydroxide ion.

B.) A solution is prepared by mixing 25.0 mLs of 4.84*10^-6 M crystal violet solution with 20.0 mLs of 0.10 M NaOH solution and diluted to a final volume of 100.0 mLs. Determine the limiting reagent.

C.) After the reaction has gone to completion, calculate the concentration of all species in the reaction.

D.) How does the concentration of sodium hydroxide change over the course of the reaction?

E.) Explain your answer in question D in terms of the intial concentrations of reactants.

2,2,4-trimethylpentane

A) one retrosynthetic analysis

B) a reaction scheme showing each of the synthetic steps with starting materials, products, reagents and conditions

C) a paragraph or so describing the logic of a synthetic strategy and why it would be the most likely to give

the desired product.

D) References to any sources that were used.

In a constant-pressure calorimeter, 75.0 mL of 0.830 M H2SO4 was added to 75.0 mL of 0.400 M NaOH. The reaction caused the temperature of the solution to rise from 21.85 °C to 24.57 °C. If the solution has the same density and specific heat as water (1.00 g/mL and 4.184 J/g·K, respectively), what is ΔH for this reaction (per mole of H2O produced)? Assume that the total volume is the sum of the individual volumes.

Acid base titration determination of Na2CO3 in Soda Ash

CO3^2- +H⁺ = HCO3^-

HCO3^- + H⁺ = H2CO3

Buffer by mixing acetic acid and sodium acetate.

The comparison indicator solution should match the analytical solution at the second equivalence point in three respects: pH, Ionic strength, color and intensity

A) Calculate the concentration of sodium acetate necessary to achieve the ionic strength in pre lab 4. ( Pre lab 4 calulation, the ionic strength that I have calculated is to be 0.1)

B) Calculate the concentration of acetic acid given the values calculated for A.

C) Calculate the mass of unknown to weight out in order to consume 40 ml of 0.1 M HCL assuming the unknow is 35% by mass Na2CO3.

For preview calculation where you calculate the mass of Na2CO3 needed to consume 40 mL of 0.10 M HCL in a titration of Na2CO3 with HCL come out to be 0.212 gram needed to consume 40 mL of 0.10 M of HCL.

"monoclonal antibody can be used as a therapeutic agent for the treatment of cancer"- justify the statement with an appropriate example

If the weight of an unknwon sample is greater than 1g, as it may be with pottassium phthalate samples of low percentage purity, why does this sample need only to be weighed to the nearest milligram?

Evaluate the physical and chemical methods of waste treatment? How efficient are they in and what is their effect on the environment (positive and/or negative)?

B.) Enter the net ionic equation representing aqueous acetic acid neutralized by aqueous barium hydroxide.   

Express your answer as a balanced net ionic equation. Identify all of the phases in your answer.\

C.) Enter the molecular equation representing solid chromium (III) hydroxide reacting with nitrous acid.   

Express your answer as a balanced molecular equation. Identify all of the phases in your answer.

D.) Enter the net ionic equation representing solid chromium (III) hydroxide reacting with nitrous acid.   

Express your answer as a balanced net ionic equation. Identify all of the phases in your answer.

E.) Enter the molecular equation representing aqueous nitric acid and aqueous ammonia reacting.

Express your answer as a balanced molecular equation. Identify all of the phases in your answer.

F.) Enter the net ionic equation representing aqueous nitric acid and aqueous ammonia reacting.  

Express your answer as a balanced net ionic equation. Identify all of the phases in your answer.

The atmosphere slowly oxidizes hydrocarbons in a number of steps that eventually convert the hydrocarbon into carbon dioxide and water. The overall reactions of a number of such steps for methane gas is as follows:
CH4(g)+5O2(g)+5NO(g)→CO2(g)+H2O(g)+5NO2(g)+2OH(g)
Suppose that an atmospheric chemist combines 165 mL of methane at STP, 865 mL of oxygen at STP, and 57.5 mL of NO at STP in a 2.2 −L flask. The reaction is allowed to stand for several weeks at 275 K.

A) If the reaction reaches 90.0% of completion (90.0% of the limiting reactant is consumed), what are the partial pressures of each of the reactants in the flask at 275 K? (answer as follows: PCH4,PO2,PNO)

B) If the reaction reaches 90.0% of completion (90.0% of the limiting reactant is consumed), what are the partial pressures of each of the products in the flask at 275 K? (answer as follows PCO2,PH2O,PNO2,POH)

C) What is the total pressure in the flask?

Sodium nitroprusside is ordered at 0.3 mcg/kg/min for a 220-lb patient. A vial containing 50 mg of sodium nitroprusside in 2 mL is diluted to 250 mL with NSI and ordered to run at 14 mL/h. Is this run rate correct? If not, what should be the correct infusion rate? The correct answer is no, and 9 mL/h. Please show how this problem is solved.

Though they are not necessary in every situation, solvents are used when performing reactions for many reasons. What function does a solvent serve in a reaction (list two)? What characteristics are important to consider when selecting a solvent (list two)? This is regards to organic chemistry, please explain your answers, please!