Calculate the following: a. number of atoms in 8.71 g F2 b. number of molecules in...

Question

Question

Calculate the following:

a. number of atoms in 8.71 g F₂

b. number of molecules in 14.9 g N₂O₅

c. number of Ca²⁺ ions in 9.23 g Ca₃(PO₄)₂

science chemistry

Answer 1

Answer #1

Answer 2

Similar Homework Help Questions

Hi, I need help with this Question? Q. Determine the number of atoms or molecules in...

Hi, I need help with this Question? Q. Determine the number of atoms or molecules in the following: a) 20.0 grams of H2 b) 84.6 grams of Na2CO3 c) 9.432 kg of Bel d) 0.75 moles of Ca3(PO4)2
1- Calculate the following: A- Number of moles in 10 gram of AlBr3. B- Number of...

1- Calculate the following: A- Number of moles in 10 gram of AlBr3. B- Number of Atoms in 10 gram of Al(OH)3. C- Number of molecules in 10 gram of Cr(NO3)5. D- Number of grams in 10 10 atoms of AlBr3. 2- How many gram of Oxygen is in 10 gram of Zn(OH)2? 3- Balance the following chemical equations: A- O2--------------->O3 B-Na++Al(OH)3--------------> C-KI+Mg(NO3)2---------------> D-FeCl3+Ca3(PO4)2---------------> E- C4H12+O2---------------->CO2+H2O 4- Find Oxidized –Reduced and number of electrons: a) 3Ba+N2---------->Ba3N2 OX: RE: Electrons: b)...
QUESTION 2 Which of the following molecules will not be part of the equilibrium constant for...

QUESTION 2 Which of the following molecules will not be part of the equilibrium constant for this reaction: 4 Fe (s) + 3 02 (9) 2 Fe203 (s) Select all that apply Fe 02 Fe2O3 QUESTION 3 Which of the following molecules will not be part of the equilibrium constant for this reaction: Ca3(PO4)2 (s) = 3 Ca2+ (aq) + 2 PO43- (aq) Select all that apply Ca3(PO4)2 Ca2+ PO43-

Avogadro's Number Avogadro's Number Elementary Units of A (atoms, molecules, ions) Elementary Units of B (atoms,...

Avogadro's Number Avogadro's Number Elementary Units of A (atoms, molecules, ions) Elementary Units of B (atoms, molecules, ions) What is the molarity of an aqueous solution of potassium hydroxide if 21.34 mL is exactly neutralized by 20.78 mL of 0.116 M HCI? Write and balance the molecular equation for the reaction.
Calculate the number of cations and anions in each of the following compounds. Enter your answers...

Calculate the number of cations and anions in each of the following compounds. Enter your answers in scientific notation. (a) 8.16 g of KBr (b) 4.31 g of Na2SO4 (c) 5.56 g of Ca3(PO4)2
1) Calculate the number of molecules in the following: a) 0.25 mol of glucose (C6H1206) b)...

1) Calculate the number of molecules in the following: a) 0.25 mol of glucose (C6H1206) b) 1.4 g of HCI c) 0.35 g of NH3 2) What is the mass of the following: a) 5.00x10" molecules of HI b) 0.0250 mol of Al(SO4)3 c) 1.00x10% atoms of Na 3) How many are there: a) moles in 2.50g of K PO. b) grams in 0.034 mole of HCI c) moles in 1.25g of NazS 4) Calculate a) How many g of...

How many atoms or ions of each element are in 151.1 g of the following substances?...

How many atoms or ions of each element are in 151.1 g of the following substances? (a) H2 x 1025 H atoms (b) Ca(NO3)2 * 1023 Ca2+ ions x 1024 NO3 ions (C) N202 x 1024 N atoms * 1024 O atoms (d) K2SO4 * 1024 K+ ions * 1023 s042-ions
uppropriate) - MgCl2 → _Mg3(PO4)2 + b. Cg H18 + O2 2. Write a balanced equation for the following: _KCI (4) CO2 +...

uppropriate) - MgCl2 → _Mg3(PO4)2 + b. Cg H18 + O2 2. Write a balanced equation for the following: _KCI (4) CO2 + opper H2O + sulfuric acid water + sulfur dioxide dioxide + + copper (11) copper (II) sulfat (21) 3. a. Calculate the molar mass of Ca3(PO3)2. b. Calculate the %0 in Ca3(PO3)2. C. How many moles is 86.0g of Ca3(PO3)2? d. How many grams is 2.50 x 10-3 moles of K2S? e. How many molecules is 5.30...
4.56 How many atoms (or ions) of each element are in 140.0 g of the following...

4.56 How many atoms (or ions) of each element are in 140.0 g of the following substances? (a) BaSO4 (c) 02 (b) Mg3(PO4)2 (d) KBr

Calculate the number of cations and anions in each of the following compounds. Enter your answers...

Calculate the number of cations and anions in each of the following compounds. Enter your answers in scientific notation. (a) 7.98 g of KBr: ______× 10___ cations ____ × 10___ anions (b) 3.31 g of Na2SO4: ______× 10__ cations _____× 10__ anions (c) 7.16 g of Ca3(PO4)2: ______× 10__ cations ______× 10__ anions