3. 2.0-g NaF 6H2O is dissolved in enough analytical water to make 250.0- equilibrium concentration of concentration of F mL solution at 25°C F
Q: What are the formal charges of the resonance structure :C=S:=S::
A:
Q: Question 18 of 20 Provide the correct systematic name for the compound shown here. N- N,N,N- N,N- te...
A:
Q: 1. Explain in 2 sentences how does the definition of “lipid” differ from the types of definitions us...
A: P.S.: According to the company guidelines, we have to answer only the first question. So, please kin...
Q: Find the equation and then choose (True or False)
A: This is addition reaction. First one is chlorination . Second one is hydrogenation.
Q: What is the important values needed to calculat Km and Kcat afor an enzyme data?
A: We have to tell the important values are needed to calculate the Km and Kcat for an enzyme catalyzed...
Q: 7. Draw resonance contributors for the following two anions. Indicate which anion is a stronger base...
A: We are required to draw the resonating structure of the given anion and predict the strength of the ...
Q: Explain the major difference between the Michaelis-Menten equation and the Briggs-Haldane treatment ...
A: Micheaeli-Menten equation and Brigg-Haldane equation,both two equation describes enzyme Kinetics .
Q: Part A 3.85 mol of LiCI in 3.61 L of solution Express the molarity in moles per liter to three signi...
A: Given that, a.3.85mol of LiCl in 3.61L of solution. b.26.63g of C6H12O6in 1.30 L of solution Calcul...
Q: Provide suitable IUPAC name for each of the following compounds.
A: The naming of organic compounds can be done with help of rules of international union of pure and ap...
Q: Consider the following unbalanced chemical equation. CsH12() + 02(g) - CO2(g) + H20(/) If 30.2 grams...
A:
Q: What number of molecules (or formula units) are present in 3.07 g of each of the following compounds...
A: Given, Mass of each compound = 3.07 g Then, Find number of molecules in = ? a). NH3 b). N2H4 ...
Q: 4. Fill up the missing words in this statement. The boiling point of a non-polar substance is ______...
A: Boiling point: The temperature at which the vapor pressure of a liquid becomes equal to the atmosphe...
Q: Predict the sign of AS and then calculate AS for each of the following reactions. (This problem requ...
A: Entropy is the measurement of disorderness or randomness. Gaseous particles have more randomness in...
Q: 2. What type of intermolecular force of attraction is established when sodium chloride is dissolved ...
A: The type of intermolecular force of attraction is established when sodium chloride is dissolved in p...
Q: Obtain the oxidation number for the element noted in each of the following. a. Pb in PbO2 The oxidat...
A: Given :- PbO2 Ta2O3 KBrO4 K2FeO4 To determine :- oxidation no. Pb in PbO2 oxidation no. of...
Q: From data given below, calculate AH°, AS°, and AG° for the following reaction at 25°C. P,O10 (s) + 6...
A:
Q: Example: A phosphorus oxide contains 43.64% P and 56.36% O and its experimentally determined molar m...
A: Given compositions--- % P= 43.64 % % O = 56.36% Molar mass = 283.89 g mol-1 Empirical and molecular...
Q: GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new automate...
A: Given that, a new automated system can detect borderline high levels of dissolved cholesterol 170 to...
Q: Predict whether each of the following bonds is nonpolar covalent, polar covalent, or ionic. Be and ...
A: The ionic bond is an electrostatic attraction force, formed between the ions and it is a strong bond...
Q: (2) glubi Calculate the pH value of 0.001M ? acetic acid at 25 C if Ka=0.000018 3.1 2.84 2.58 2.12
A: The acid dissociation constant for the acetic acid is = 0.000018 The concentration of HCN solution i...
Q: Ethylene glycol contains 38.7% carbon, 9.7% hydrogen, 51.6% oxygen, and a molar mass of approximatel...
A: First of all we will calculate the empirical formula by dividing percentage mass by their atomic mas...
Q: In the electrolysis of an acid solution, oxygen can be produced by the following half-reaction: 2H20...
A:
Q: correct balanced equation for the chemical reaction described below. Ammonium carbonate and aluminu...
A:
Q: Question 5 A 20.00 mL aliquot of 0.200 M KI is added to another aqueous solution whose volume is 30....
A:
Q: Rank elements from largest to smallest electronegativity value. To rank items as equivalent, overlap...
A:
Q: A chemist prepares a solution of copper(II) sulfate (CuSO,) by measuring out 16. umol of copper(II) ...
A: Volume =250 ml = 0.250 L ( 1 L = 1000ml ) Mole = 16 micromole
Q: From data given below, calculate AH°, AS", and AG for the following reaction at 25°C. + 6H2O(1) CH12...
A:
Q: Create a sample word porblem about
A:
Q: A353 20) • 2HOlg) - CHalal + COlg) 20()+ Olg) - 2C0lg) • 2Hylg) AH 4626 k Calculate the enthalpy of ...
A:
Q: Calculate AH° for the reaction 2K (8) + 2H20(1) —> 2КОН(ад) + H- (9) Substance and State AH£° (kJ/mo...
A:
Q: CrO4 2- concentration
A:
Q: The hydrogen ion concentration of a solution is 0.00001 moles per liter. What is the hydrogen ion co...
A: Given, The hydrogen ion concentration of a solution is 0.00001 mole/ liter. What is the hydrogen io...
Q: Place 2.4 grams of sulfanilic monohydrate in a 125 ml Erlenmayer flask and dissolve it in 25 ml of 2...
A: Experiment: Place 2.4 grams of sulfanilic monohydrate in a 125 ml Erlenmayer flask and dissolve it i...
Q: a. Calculate the molar mass of Al2O3. Molar mass = g/mol b. Calculate the molar mass of Al(NOS)3. Mo...
A: a) Molar mass of Al2O3 = ? b) Molar mass of Al(NO3)3 = ?
Q: Classify each of the following substances: Clear All CO2 Lewis Acid A13+ Lewis Base NH3 Can act as e...
A: Lewis acid is an acid that has the tendency to accept an electron pair. Lewis base is a base which c...
Q: What are your preconceived notions about toxicology and safety of cosmetics?
A:
Q: Consider the following reaction and its equilibrium constant: I2(g) + Br2(g) ⇌ 2 IBr(g) Kc = 1.1 × 1...
A:
Q: A 100 80 60 40 10 20 30 40 50 60 70 80 Temperature (°C) Creative Commons license. Wikipedia. https:/...
A:
Q: Three mL of 0.00300 mg/100 mL Congo red (696.7 g/mol) reacted with 0.100 mL of 0.900 mM H202 solutio...
A: It is an example of stoichiometry we are required to find the moles of Congo red reacted per mole o...
Q: A 24.90-mL sample of hydrochloric acid solution requires 20.00 mL of 0.100 M sodium hydroxide for co...
A: At neutralization point, Geq. of HCl = Geq. of NaOH N1V1 = N2V2
Q: Determine enthalpy of activation, entropy of activation, free energy of activation (25 degC)
A: Given:
Q: A solution with a mole fraction of 0.12 is composed of 0.2 mole of solute. How many moles of solvent...
A:
Q: Calculate the molar mass of Al2 O3. Molar mass = = g/mol Calculate the molar mass of Al(NO3)3. Molar...
A: given :- molecular formula : Al2O3 Al(NO3)3 To be calculated :- molar mass of given compounds
Q: Identify the products X and Y in the following reactions and propose suitable mechanism for their fo...
A: ->SeO2 is oxidizing agent and give alpha oxidation.
Q: Determine what is the sequential bi-bi mechanism
A: A bi-bi reaction is a type of enzymatic reaction that requires two substrates and two yields two pro...
Q: Consider the following unbalanced chemical equation. C5H12(/) + 02(g) → CO2(g) + H20(/) If 13.5 gram...
A: Consider the following unbalanced chemical equation. C5H12(l) + O2(g) ----> CO2(g) + H2O(l) If ...
Q: Calculate the pH for each case in the titration of 50.0 mL of 0.230 M HCIO(aq) with 0.230 M KOH(aq)....
A:
Q: Determine the molarity of a solution with a volume of 402. mL and 0.690 mol of solute dissolved.
A: Given :- no.of moles of solute = 0.690 mol volume of solution = 402. mL To calculate :- molarity...
Q: You are given 6 mL of a solution that contains silver, lead (II), and copper (II) ions. The molarity...
A:
Q: b What is the net ionic equation for the reaction of solid barium carbonate and hydrogen bromide in ...
A:
classifiy whether it is greater than, less than, or equal.
Step by step
Solved in 3 steps
- An aqueous solution of LiX is prepared by dissolving 3.58g of the electrolyte in 283mL of water (density = 1.00g/mL). The solution freezes at -1.81C. What is X-? (Assume complete dissociation of LiX to Li+ and X-). kf for water is 1.86C/m.As solution was prepared by dissolving 5.76g of KCl.MgCl2.6H2O (277.85g/mol) in sufficient water to give 2.000L. calculate a. pMg for the solution b. pCl for the solution23. The Ksp of CuCO3ls) (copper carbonate, a salt) is reported as 2.21x10-11. Determine the solubility (in mg/L) of 1this salt in pure water Constants: The molecular mass (M) of copper carbonate (CuCOg) is 123.554 g mol-1
- A solution was prepared by dissolving 1210mg of K3Fe(CN)6 (329.2g/mol) in sufficient water to give 775mol. Calculate a. The weight/volume percentage of K3Fe(CN)6 b. The number of millimoles of K+ in 50.0ml of this solution c. ppm Fe(CN)6The Henry’s law constant for CO2 in water at 25 °C is3.1x 10-2 M atm-1. (a) What is the solubility of CO2 inwater at this temperature if the solution is in contact withair at normal atmospheric pressure? (b) Assume that all ofthis CO2 is in the form of H2CO3 produced by the reactionbetween CO2 and H2O:CO2(aq) + H2O(l)------>H2CO3(aq)What is the pH of this solution?Calculate the volume of solution required to dissolve 65.1 g of C12H22O11(molar mass 342.34g/mol) to producers a solution with a molar it's of 1.12M
- Tooth enamel is composed of the mineral hydroxyapatite, Ca5(PO4)3OH which has a Kspof 6.8 x 10^-37. What is the molar solubility of tooth enamel in water?A solution prepared by dissolving 24 mg of a nonelectrolytic molecular compound in 2,238 g of water froze at -2.25 °C. What is the molar mass of this compound? The value of Kf is 1.86 °C/m.In standardizing a solution of NaOH against 1.431g of KHC8H4O4, the analyst uses 35.50 mL of the alkali and has to run back with 5.12 mL of acid ( 1mL ≎0.0031g Na2O) What is the normality of NaOH?
- It is sometimes asserted that carbonates are soluble instrong acids because a gas is formed that escapes (CO2).Suppose that CO2 were extremely soluble in water (as, forexample, ammonia is) and therefore it did not leave thesite of the reaction, but that otherwise, its chemistry wasunchanged. Would calcium carbonate be soluble in strongacids? Explain.When 13.66g of Lactic Acid (C3H6O3) are mixed with 115g of stearic acid (C18H36O2), the mixture freezes at 62.7oC. The freezing point of pure stearic acid is 69.4oC. What is the freezing depression constant of lactic acid?The normal freezing point of ethanol (CH3CH2OH) is -117.300 °C and its Kfp value is 1.99 °C/m. In a laboratory experiment, students synthesized a new compound and found that when 10.50 grams of the compound were dissolved in 281.0 grams of ethanol, the solution began to freeze at -117.558 °C. The compound was also found to be nonvolatile and a nonelectrolyte. What is the molecular weight they determined for this compound? Answer: ______g/mol
