7.39 Calculate the mass percent composition of each of the following: a. MgF2, magnesium fluoride b....
Part A MgF2, magnesium fluoride Part B Ca(OH)2, calcium hydroxide Part C C4H8O4. erythrose, a carbohydrate
Calculate the mass percent composition of each of the following @ Mg F2, magnesium fluoride 16 C4 H ₂ O4, erythrose, a carbohydrate
9.25 Calculate the mass percent composition (percent by mass of each element) in the following compounds. (Use atomic masses rounded to hundredths in doing the calculations.) a. HCIO b. HClO2 c. HCIO3 d. HCIO ( the
Compare the solubility of silver phosphate in each of the following aqueous solutions: Clear All 0.10 M AgNO3 More soluble than in pure water. 0.10 M (NH4)3PO4 Similar solubility as in pure water. 0.10 M NaCH3COO Less soluble than in pure water. 0.10 M NH4NO3 Compare the solubility of calcium fluoride in each of the following aqueous solutions: Clear All 0.10 M Ca(CH3COO)2 More soluble than in pure water. 0.10 M KF Similar solubility as in pure water. 0.10 M...
calculate the percent composition by mass of aluminum hydroxide
AL(OH)3
M ynt (in g) of nitrogen atoms in 6.14 x 10" molecules of dinitrogen anden 9 2.02g Imor 2204-) -1030 ( IMEL N204-) 16.022x1023 = 9.38 23 x 100 14.01X2 28.02 16*4= 64 Calculate the percent composition by mass of aluminum hydroxide, Al(OH) 34:6% ! anr-2,9x Α1 18 61.5% 3.9% x 3 102% ALY
+-/3.75 points Calculate the percent composition (by mass) for these substances from their molecular form (a) calcium chloride, road salt, CaCl2 %Ca 64 36 %CI 02 (b) caffeine, our favorite stimulant, CHN %C %H Enter a number %N %O
explain in detail, please.
A23. What is the expression you would develop to calculate the molar solubility, s, of Ca(OH)2 in a 0.2 M CaCl2 solution? (A) 0.45 + 282 (B) 483 (C) 0.452 + 253 (D) 0.852 + 453 (E) 0.252 + s3 A24. A chemist separately measures out 3 x 10-4 mol calcium chloride, 3 x 10-4 mol magnesium chloride and 1.8 x 10-3 mol sodium hydroxide and dissolves each one of these in a volume of 100...
For each of the following samples of ionic substances, calculate the number of moles and mass of the positive ions present in each sample. 4.25g of ammonium iodide, 6.31moles of ammonium sulfide, 9.71g of barium phosphide, 7.63moles of calcium phosphate,
18. For each of the following, write a balanced equation and a net ionic equation, if possible. howing, write a balanced molecular equation, a balanced total ionic a. sodium carbonate + copper(II) chloride -----> b. potassium chloride + calcium nitrate ------> C. sodium sulfide + hydroiodic acid -------> d. ammonium phosphate + magnesium hydroxide -----> e. hydrochloric acid + silver nitrate ------->
Calculate the mass percent composition of O in each compound. A. calcium nitrate Express your answer using four significant figures. B. manganese(II) sulfate Express your answer using four significant figures. please help these are the only questions i have trouble with. but please also explain.