Which statements are true regarding the chemical formula Pb(NO3)4. Select the three that apply. The formula unit has a ratio of four nitrate ion for every lead (IV) ion. Each Nitrogen atom is bonded with three oxygen atoms Formula unit contains more lead (IV) ions than nitrate ions. Each nitrate ion is bonded with four lead (IV) ions. Each formula unit has total of seventeen atoms
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- Consider the following acids and their ionization constant, determine which conjugate base is HCOOH Ka = 1.7 x 10-4 (b) HCN Ka = 4.9 x 10-10Solid iron(II) fluoride (FeF2, Ksp= 2.36 x 10-6) is dissolved in water. If 8.1 x 10-3 mol L-1 of iron(II) ion is found to be in solution. Is the solution saturated, unsaturated, desaturated or supersaturated.A solution with a density of 0.876 g>mL contains 5.0 g of toluene 1C7H82 and 225 g of benzene. Calculate the molarity of the solution.
- (the pic cut off but this is shown below) (answer full question)Select all the pH values at which the charged form of the R group would predominate.* 2.2* 12.4* 6.2* 10.5Give the formulas for the ions in the following two ionic compoundscation (+) anion (-)ammonium chloride _________ _________sodium chloride _________ _________The bromide ion (made from bromine atoms) has the same charge as the chloride ion. Writethe chemical formula for the following two ionic compounds where the bromide ion issubstituted for the chloride ion.ammonium bromide = ________________; sodium bromide =____________________The principal component of many kidney stones is calcium oxalate, CaC2O4 . A kidney stone recovered from a typical patient contains 8.5 * 1020 formula units of calcium oxalate. How many moles of CaC2O4 are present in this kidney stone? What is the mass of the kidney stone in grams?
- Identify the conjugate acids and bases in the following pairs of substances. (CH3)3NH / (CH3)3N *H3NCH2CH,C00 / H2NCH;CH2COO OOCCH,COOH/ 00CCH2CO0The pH of normal human blood is in the range of 7.35 to7.45. Compute the range of the concentration of H3O+and the range of the OH- concentration in normal blood.The pH of a fruit juice is 4.8. Find the hydronium ion concentration, [H3O*], 0 of the juice. Use the formula pH = -log [H3O*]. ... The hydronium ion concentration [H3O*] is approximately moles per liter. (Use scientific notation. Use the multiplication symbol in the math palette as needed. Round to the nearest tenth as needed.)
- A 0.10 M solution of the deadly poison hydrogen cyanide, HCN, has a pH of 5.2. Calculate the [H3O+] of the solution. Is HCN a strong or a weak acid?A solution is made by dissolving 9.5 g of sucrose, C12H22O11 (molar mass 342.3 g mol-1) in water to make 250.0 mL of solution. What is the molarity of the solution?The pH of a 1.25 x10-3 M NaOH solution is: a 7 2,90 3.10 d 11.10 O e 10.90