1.)how many grams of Mn^2+ are present in 3.11 grams of manganese (II) chloride? 2.) How...
If 20.6 grams of an aqueous solution of manganese(II) chloride, MnCl2, contains 2.99 grams of manganese(II) chloride, what is the percentage by mass of manganese(II) chloride in the solution? % MnCl2 Submit Answer Retry Entire Group 8 more group attempts remaining Not started <Previous Next
1. How many GRAMS of manganese(II) nitrate are present in 1.37×1022formula units of this compound? grams 2. How many formula units of manganese(II) nitrate are present in 9.90 grams of this compound? formula units
1. How many GRAMS of nickel(II) chromate are present in 2.09 moles of this compound ? grams. 2. How many MOLES of nickel(II) chromate are present in 3.84 grams of this compound ? moles. Submit Answer Retry Entire Group 8 more group attempts remaining
How many grams of solute are present in each of these solutions? a. 47.2 mL of 0.351 M HBr g HBr ot b. 103.0 L of 1.21 M Na2 COs pt pt g Na2COs c. 31.7 mL of 6.2 M CH3 COOH g CH3COOH pt d. 2.4 x 10 L of 1.40 M H2SOs 1 pr g H2SO 1 pt 8 item attempts remaining Try Another Version Submit Answer 1 pt 1 pt 1 pt 1 pt 1 pt
In the laboratory you are asked to make a 0.506 m chromium(II) nitrate solution using 315 grams of water. How many grams of chromium(II) nitrate should you add? grams Submit Answer Try Another Version 3 Item attempts remaining ot for this question. Identify the point(s) on the following diagram where the removal of heat will cause some of the sample to freeze. H Temperature E. С Heat Energy Enter your answer in alphabetical order, e.g., DF) not FDJ. Point(s); Submit...
How many grams of solid ammonium bromide should be added to 2.00 L of a 0.259 M ammonia solution to prepare a buffer with a pH of 10.160 ? grams ammonium bromide = Submit Answer Try Another Version 9 item attempts remaining
The vapor pressure of ethanol is 54.68 mm Hg at 25°C. How many grams of estrogen (estradiol). C18H2402, a nonvolatile, nonelectrolyte (MW 272.4 g/mol), must be added to 272.5 grams of ethanol to reduce the vapor pressure to 53.15 mm Hg? ethanol CH3CH OH = 46.07 g/mol gestrogen Submit Answer Try Another Version 3 item attempts remaining Identify the point(s) on the following diagram where the addition of heat will cause the temperature of the sample to increase . H...
1. How many grams of Pb2+ are present in 2.54 grams of lead(II) bromide? grams Pb2+ 2. How many grams of lead(II) bromide contain 1.26 grams of Pb2+? grams lead(II) bromide. 1. How many grams of Cu2+ are present in 3.92 grams of copper(II) iodide? grams Cu2+ 2. How many grams of copper(II) iodide contain 1.28 grams of Cu2+? grams copper(II) iodide.
1. How many grams of N are present in 1.73 grams of nitrogen dioxide ? grams N. 2. How many grams of nitrogen dioxide contain 2.56 grams of O?! grams nitrogen dioxide. Subm Answer Retry Entire Group 7 more group attempts remaining
1. How many GRAMS of sulfur are present in 3.41 moles of sulfur tetrafluoride? grams 2. How many MOLES of fluorine are present in 2.86 grams of sulfur tetrafluoride ? moles Submit Answer Retry Entire Group 9 more group attempts remaining