Questions tagged 'Moles'
32 questions
How many moles of Pb are in 4.71 x 10^21 Pb atoms?
How many moles of lead (Pb) are present in 4.71 x 10^21 atoms of Pb? I have calculated possible answers, which include 0.00782, 2.84 x 10^45, 207.2, and 6.022 x 10^23. Could you help me determine the...
How many moles of c8h18 contain 9.25 × 1024 molecules of c8h18 ?
How many moles of C8H18 are present in 9.25 × 10^24 molecules of C8H18?
DETERMINE THE NUMBER OF MOLES OF H IN EACH SAMPLE? PLEASE! NEED BIG HELP?!?
I need assistance in determining the number of moles of hydrogen (H) in each of the following compounds: a. 4.67 mol H₂O b. 8.39 mol NH₃ c. 0.117 mol N₂H₄ d. 35.8 mol C₁₀H₂₂ Could someone please hel...
The coefficients in a balanced chemical equation always can express the ratio of
The coefficients in a balanced chemical equation represent the ratio of moles of reactants and products involved in the reaction. Before performing stoichiometric calculations, it is essential to ensu...
Jan 22, 2025
what is the mass of 0.7891 mol of ferric oxide (Fe2O3)?
What is the mass of 0.7891 moles of ferric oxide (Fe2O3)?
How many moles of CH3CH2F are contained in 548 mL of 0.0788 M CH3CH2F solution?
How many moles of CH3CH2F are present in 548 mL of a 0.0788 M CH3CH2F solution?
Jan 13, 2025
What is the mass of 18.8 moles of helium (He) atoms?
What is the mass of 18.8 moles of helium (He) atoms? a) 0.213 g b) 4.70 g c) 37.6 g d) 75.2 g Which of the following has the greatest mass in grams? 1) 1 atom of gold (Au) 2) 0.5 moles of lead (Pb)...
Exactly 1 mol of CaCr2O7 contains how many moles of Ca, Cr, and O?
How many moles of calcium (Ca), chromium (Cr), and oxygen (O) are present in exactly 1 mole of calcium dichromate (CaCr2O7)?
What is the volume of 1.9 moles of chlorine gas (cl2) at standard temperature and pressure (stp)?
What is the volume of 1.9 moles of chlorine gas (Cl₂) at standard temperature and pressure (STP)? Options: - 12 L - 22.4 L - 43 L - 81 L
What is the mass in grams of 5.90 mol C8H18?
What is the mass in grams of 5.90 moles of C8H18? A) 0.0512 g B) 19.4 g C) 89 g D) 673 g Please indicate your answer by selecting either A, B, C, or D. Thank you! 😊