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Why do different types of meat get different colours when they
In a titration of 43.60 mL of 0.3540 M ammonia with 0.3540 M aqueous nitric acid,...
1) When would a cell use Active Transport? Mark all that apply. -When the cell needs...
You will apply the oxidation reaction to 9-fluorenol to obtain 9-fluorenone a) describe the role of...
If you have 1,0M NH4Cl and 0,1M NaOH, how will you mix 1L buffer solution with...
A sample of 0.320 M hydroxylamine (HONH2) is reacted with 0.210 M HBr solution. Kb =1.1...
A. Consider a buffer solution that is 0.30M propionic acid and 0.40M sodium propionate. Ka (propionic...
Why is energy input required to break a chemical bond? Note: Energy input is required to...
A. Calculate the solubility of Au(OH)3 in water (Ksp=5.5×10−46). B. Calculate the solubility of Au(OH)3 in...
Discussion about: Essential Elements Some elements are essential to our health, like oxygen that makes up...
The distribution coefficient of styrene distributed between ethylbenzene and ethylene glycol at 25°C is 0.19 mass...
In this lab, we are trying to determine the concentration of caffeine in caffeinated beverages using...
What volume of a 15.0% by mass NaOH solution, which has a density of 1.116 g/mL,...
In which molecule does the central atom have one lone pair of valence electrons? a. IF5...
calculate the volume (in mL) of a .310 M KOH solution that should be added to...
In an ionic compound, the size of the ions affects the internuclear distance (the distance between...
Farmers use ammonium sulfate as a fertilizer. In the soil, nitrifying bacteria oxidize NH4+ to NO3−,...
4. A Noble Gas has a density of 2.3013 g/L at 1185.6 torr and 330.0 K....
The initial concentrations of I2 and I− in the reaction below are each 0.0401 M. If...
I am having trouble finding some pKa values for a lab I am doing. Does anyone...
Explain why the fluorescence emission is detected perpendicular to the excitation beam in a fluorimeter.
The empirical formula of a compound is CH. At 200°C, 0.145 g of this compound occupies...
what is the pH of a solution prepared by mixing 55 mL of .183 M KOH...
Clearly explain why HOCl is stronger than HOBr, whereas HCl is weaker than HBr with respect...
Using the table provided below, what is the entropy change if 4.5 g of CaCO3(s) is...
Sucrose phosphorylase catalyzes the phosphoralytic cleaveges of sucrose in certain microorganisims Sucrose + P----> glucose-1-phosphate +...
You need to prepare an acetate buffer of pH 6.12 from a 0.755 M acetic acid...
balance the following chemical equation 1.---mgcl2 +----k3po4>-----mg3(po4)2 + kcl 2. ----n2 +----h2>NH3 3.----Agclo3>Agcl + o2 4.give...
Automobiles and trucks pollute the air with NO. at 2000 degree celcius, Kc for the reaction...
A weak acid, HA, has Ka = 1.4 x 10-5. At 312 nm, HA has ...
!. What are the coefficients for this equation so that it balances? HCl(aq) + Al(s)------ H2(g)...
6. Which of the following, when added to an equilibrium mixture represented by the equlibrium below,...
If a 0.10 M aqueous solution of CH3COOH exhibits a pH of 2.87, predict the pH...
Given the data ?G ? f ?H? f CuO(s) ?129.7 ?157.3 HCN(g) +124.7 +135.1 NH3(g) ?16.45...
The following question pertains to biochemistry A)Which of the following best describes the role of the...
How many liters of C6H14(l), measured at 20 ∘C, must be burned to provide enough heat...
A 0.0800 kg sample of gas is heated from 25 C to 225 C. During this...
A cylinder contains 91.3 g of oxygen gas. If the volume of the cylinder is 8.58...
What is the pKb of a weak base KA if the pH of a 0.094-M solution...
Determine the pH of a 0.200 M solution of hydrofluoric acid (HF) (Ka = 6.3 x...
A 0.271 g piece of solid magnesium reacts with gaseous oxygen from the atmosphere to form...
What would be the effect on M.P. of a sample if it were not dried completely...
1)Calculate the pH during the titration of 20.0 mL of 0.25 M HBr with 0.25 M...
Balance these equations for redox reactions in basic solution ClO2 > ClO3^- + Cl^- (Include phase...
Problem Statement: Calculate amount of cisplatin, an antitumor agent, in grams, that can be produced if...
When chlorine is added to drinking water to kill bacteria, some of the chlorine is changed...
Assuming that MTBE reatcs in the atmosphere at the methyl group attached to the oxygen, use...
A Microscale Approach to Organic Laboratory Techniques (5th Edition), CH 15, #1. d. e. ONLY. PLEASE...
Convert in micromoles, the (change in absorbance/minute) using Beer's Law and extinction coefficient for dopachrome (3600...
Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25
A 1.37 L buffer solution consists of 0.136 M butanoic acid and 0.337 M sodium butanoate....
What product would result from the reaction of (R)-2-bromooctane with – CN, in a DMSO solvent?...
methanol (CH3OH) can be synthesized by the following reaction: CO(g)+2H2(g)--->CH3OH(g) what volume (in liters) of hydrogen...
The concentration of a biomolecule inside a rod-shaped prokaryotic cell is 0.0021 M. Calculate the number...
a reaction was conducted in an "open" (constant pressure) calorimeter. 1.00g acetic acid (HC2H3O2) is dissolved...
Calculate the reaction quotient Qp for the following redox reaction: 14H+ + Cr2O72- + 6Cl- ---->...
Calculate So values for the following reactions by using tabulated So values from Appendix C. (a)...
A fisher esterification was performed for the formation of benzyl acetate from 2.0 mL of benzyl...
EXTRACTION OF EUGENOL 1) You removed the diethyl ether from the Eugenol by means of a...
Consider the following reaction: CaCO3(s)→CaO(s)+CO2(g). Estimate ΔG∘ for this reaction at each of the following temperatures....
Ammonia is formed by the Haber process according to the following reaction: N2(g) + 3H2(g) ⇌...
Hi! I have some trouble explaining myself for this question. I am taking Organic Chemistry and...
Calculate the pH of a solution prepared by mixing 15 mL of 0.1M NaOH and 30...
Write equations for the dissociation equilibrium reactions for the following acids and bases in water. Which...
Please complete and balance the following and explain how to do it please: _____ Li(s) +...
A solution of 10-3-mole of sodium propionate (CH3CH2COONa) is added to 1 liter of distilled water....
Specify which of the following are redox reactions and identify the oxidizing agent, the reducing agent,...
In your lab you are studying a certain biochemical bacterial metabolic pathway (shown below). You have...
A buffer solution is prepared by mixing 90.9 mL of 0.0847 M sodium hydrogen citrate with...
The reaction of 9.15 g of carbon with excess O2 yields 8.25 g of CO2. What...
Consider the equilibrium CO2 (g)+4H2(g)⇌ CH4 (g)+ 2H2O(g) for which deltaH° =-252.9 kJ/mol and deltaG° =-130.8...
A food chemist determines the concentration of acetic acid in a sample of apple vinegar by...
Four hundred liters of a yeast suspension in water is initially at 1.21% solids. The density...
In thin-layer chromatography (TLC), the TLC plate may need to be __________________________ in order to identify...
In the following experiment, a coffee-cup calorimeter containing 100 mL of H2O is used. The initial...
Diatomic and atomic fluorine gas exists in equilibrium according to the following reaction F2(g) -><- 2F(g)...
Which statements regarding shape and charge complementarity are true? 1) Charge complementarity occurs when specific noncovalent...
which of these elements are unlikely to form covalent bonds? S, H, K, Ar, Si
1) 30.0 mL of 0.44M hydrazoic acid; (HN3; Ka=2.6 x 10^-5) is titrated with a 0.22...
Explain why the indicator bromocresol green would not have been an appropriate choice as an indicator...
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