
How many moles of LiF are present in a 42.0 g sample? • Your answer should...
how many moles are present in 0.00339g of LiF?
In a 2.86E+1 g sample of NaHCO3, how many grams of sodium are present? Use two decimal places in atomic masses. Only give the numeric value of your answer. Don't include the units. i Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5e5 for 2.5 x 105) In a 1.018E+2 g sample of iron(111) oxide, how many grams of iron are present? Your answer should have the...
1) How many grams are in 3.80 mol of sodium chloride (NaCl)? Express your answer numerically in grams. 2) How many water molecules are in a block of ice containing 2.25 mol of water (H2O)? Express the number of molecules numerically. 3) Calculate the mass of water produced when 2.98 g of butane reacts with excess oxygen. Express your answer to three significant figures and include the appropriate units. 4) Calculate the mass of butane needed to produce 69.9 g...
Part A How many equivalents of Mgare present in a solution that contains 2.30 moles of Mg Express your answer using three significant figures. IVANOO ? EqM2+ Submit Request Answer
Part A How many moles of sulfur are present in 3.5 moles of Al2(SO4)3? Express the number of moles to two significant figures. V AX“ o ? 0.5 moles Part B How many moles of aluminum ions are present in 0.36 moles of Al(SO4)3? Express the number of moles to two significant figures. VO AEM O O ? TAI = 0.6 mol Submit Previous Answers Request Answer Part How many moles of sulfate ions (S0,2 - ) are present in...
#6: How many moles of sodium chloride are present in 9.29 g? How many moles of sodium are present in the sample? please show work
Part A How many equivalents of Mg2+ are present in a solution that contains 2.70 moles of Mg2+ ? Express your answer using three significant figures. 10 A¢ A © 2 ? Na Eq Mg2+ Submit Request Answer
How many moles of NH3 are produced when 1.7 moles H_2 reacts? Express your answer using two significant figures. How many moles of H_2 are needed to react with 0.80 mole N_2? Express your answer using two significant figures. How many moles of N_2 reacted if 0.65 mole NH_3 is produced? Express your answer using two significant figures.
parts B and C
How many moles of PCls can be produced from 29.0 g of P4 (and excess Cl2)? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) Value Units Submit ▼ Part C How many moles of PCls can be produced from 50.0 g of Cl2 (and excess P4)? Express your answer to three significant figures and include the appropriate units.
How many milliliters of a 0.222 M LiF solution contain 0.444 moles of LiF?