1. A 62.0 sample contains 46.171 g chlorine and the rest magnesium. What is the percent magnesium is in this sample? Enter the number and the unit.
2. A sample contains 15.18 g aluminum and 59.82 g chlorine. What is the percent aluminum is in this sample? Enter the number and the unit.
3. An 85.0 sample contains 24.718 g sulfur and the rest potassium. What is the percent potassium is in this sample? Enter the number and the unit.
4. A 62.0 sample contains 15.829 g magnesium and the rest chlorine. What is the percent chlorine is in this sample? Enter the number and the unit.
percentage has no unit.
If percentage of one comment is given in case of two component system them we can get percentage of other components.
1. A 62.0 sample contains 46.171 g chlorine and the rest magnesium. What is the percent...
A 36.0 g sample contains 14.6 g Cl and 21.4 g B. What is the percent composition of chlorine in this sample by mass?
a 8.18g sample of a compound contains 2.61g of potassium K, 2.37 g of chlorine, Cl, and oxygen O. calculate the empirical formula
1. Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 3.80 moles of magnesium perchlorate, Mg(ClO4)2. Express the number of moles of Mg, Cl, and O atoms numerically, separated by commas. 2. A sample of propane, C3H8, contains 10.4 moles of carbon atoms. How many total moles of atoms does the sample contain? Express the total number of moles of carbon and hydrogen numerically. One molecule of ozone, O3, contains three oxygen atoms. Similarly, 1 mole of...
One molecule of ozone, O3, contains three oxygen atoms. Similarly, 1 mole of ozone contains 3 moles of oxygen atoms. We can use this mole ratio to create two conversion factors: 3 moles O1 mole O3 and 1 mole O33 moles O Here's how to find the number of moles of oxygen atoms in 2 moles of ozone: 2 moles O3×3 moles O1 mole O3= 6 moles O Part A Calculate the number of moles of aluminum, sulfur, and oxygen...
part 1) An aqueous solution of magnesium nitrate, Mg(NO3)2, contains 2.03 grams of magnesium nitrate and 17.8 grams of water. The percentage by mass of magnesium nitrate in the solution is %. part 2) The mole fraction of lead acetate, Pb(CH3COO)2, in an aqueous solution is 1.80×10-2 . The percent by mass of lead acetate in the solution is %. part 3) An aqueous solution is 40.0 % by mass potassium bromide, KBr, and has a density of 1.37 g/mL. The mole...
Match each element in the left column with its most likely oxidation state in a compound in the right column. (Based on the elements location in the periodic table) magnesium aluminum oxygen chlorine potassium barium nitrogen sulfur fluorine strontium carbon arsenic A. +1 B. +2 C. +3 D. 0 E. -1 F. -2 G. -3 H. +4/-4
Exp 9 Translating Word Equations into Balanced Chanical Equations A. Combination Reactions Instructor Demonstrations 1. magnesium(s) + oxygen(g) magnesium oxide(s) + 02() 4 Mg(s) 2. sulfur(s) + oxygen(g) 4 sulfur dioxide(g) S(8) + O2(E) B. Decomposition Reactions 1. copper(II) sulfate pentahydrate(s) copper(II) sulfate(s) + water(s) CuSO4.5H20() 2. sodium hydrogen carbonate(s) 4 sodium carbonate(s) + water(g) + carbon dioxide(g) NaHCO3(-) C. Single-Replacement Reactions 1. copper(s) + silver nitrate(aq) + copper(II) nitrate(aq) + silver(s) Cu() + AgNO3(aq) → 2. magnesium(s) + hydrochloric...
Do sample problem 13.10 in the 8th ed of Silberberg. A 0.892 g sample of magnesium chloride dissolves in 96 g of water in a flask. =CH- . = Mg2+ How many moles of Cl-? Enter to 4 decimal places. Question 10 1p Do sample problem 13.10 in the 8th ed of Silberberg. A 0.946 g sample of magnesium chloride dissolves in 83.5 g of water in a flask. = CH = Mg2+ Assuming the solution is ideal, what is...
1. How many moles of Cl are there in a sample that contains 6.20x1022 chlorine atoms? moles 2. How many chlorine atoms are there in a sample that contains 2.66 mol of Cl? atoms
Calculate the osomolarity of 0.5 g/mL of magnesium sulfate heltahydrate (MgSO4*7H2O) MW= 246.47 g/mol Calculate the osmolarity of 1 Liter of solution that contains 40mEq of sodium, 20 mEq of potassium, 60 mEq of chlorine and 5% w/v of dextrose (mol way: 180 non-electrolyte). My teacher gave me the answer but I didn't understand how they got it. thank you. 2. Calculate the osmolarity of 0.5 g/mL of magnesium sulfate heptahydrate - MgSOa.7H20 MW-246.47 g/mol 0.59 Calculate the osmolarity of...