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...
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
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 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.
How many milliliters of a 0.222 M LiF solution contain 0.444 moles of LiF?
How many moles of iron (7.87 g/mL) are present in a 3.1 L sample?