How many ATOMS of phosphorus are present in 8.70 grams of phosphorus triiodide ?  atoms of phosphorus . And  How many GRAMS of iodine are present in 1.55×1020 molecules of phosphorus triiodide ?  grams of iodine .

Q: How many atoms of hydrogen are in 2.55 kg of NH3? What is the mass of 7.40 moles of Fe(NO2)2?…

A: The answer to the following question is- a) given mass of ammonia = 2.55 kg Molar mass of NH3 =…

Q: What is the mass of 3.66 moles of N2 ?

A: Given : number of moles of N2 = 3.66 mol  To calculate :- mass of N2 (in g)    Number of moles =…

Q: How many MOLECULES of dinitrogen monoxide are present in 4.00 grams of this compound? How many…

A: Given, a) mass of dinitrogen monoxide (N2O) = 4.00 grams Number of molecules of dinitrogen monoxide…

Q: You gave 4.5 × 1025 aluminum atoms . How many moles of aluminum atoms do you have?

A:

Q: How many moles of calcium atoms do you have if you have 8.13 × 10²¹ atoms of calcium. (The mass of…

A: One mole of any substance contains 6.023×1023 particles. This is called as Avogadro’s number. The…

Q: Calculate how many grams of chlorine gas are in 8.031 x 1023 atoms of chlorine gas.

A: Given: Atoms of chlorine gas is 8.031×1023 Mass of one mole of chlorine gas is 70.9 g

Q: molecular weight

A:

Q: Acetaminophen, a common aspirin substitute,has the formula C 8 H 9 N O 2 . Determine the numberof…

A: Given  Molecular formula of acetaminophen = C8H9NO2  Molar mass of C8H9NO2 = (12 x 8 ) + ( 1 x 9 ) +…

Q: Calculate the total number of N atoms in 23.8 g N2O5. O 2.65 x 1023 total N atoms O 9.31 x1023 total…

A:

Q: How many moles of phosphorus atoms do you have if you have 5.90 × 1022  atoms of phosphorus. ( The…

A: Given: Atoms of phosphorus is 5.90×1022 Mass of one mole of phosphorous is 30.97 g.

Q: 1. What is the mass of 1.78×104 atoms of boron ? grams 2. How many boron atoms are there in 39.7…

A:

Q: Calculate how many grams of chlorine gas are in 8.031 x 1023 atoms of chlorine gas.

A: Given that atoms of chlorine gas = 8.031 ×1023 atoms But, chlorine gas is diatomic gas and 1…

Q: How many ATOMS of nitrogen

A: 1 mole of dinitrogen monoxide (N2O) contains 2 Nitrogen atoms and 1 Oxygen atom.

Q: A 2.37 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.24 x 1044…

A: Given data,  Mass of nitrous oxide = 2.37 g  Contains 3.24 × 1022 N2O molecules

Q: A sample of C3H8C3H8 has 4.48×1024 H4.48×1024 H atoms. How many carbon atoms does the sample…

A:

Q: A 3.17 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 4.34 x 1022…

A:

Q: A sample of hydrogen has a mass of 40.2 grams.  How many H atoms are there in the sample?   How…

A: Given that,mass of hydrogen = 40.2 gMolar mass of hydrogen = 2.016g/molmoles of hydrogen = mass of…

Q: A 2.41 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.30 x 102…

A: Given: Number of molecules of N2O =3.30×1022 molecules And mass of N2O sample =2.41 g

Q: A 3.87g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 5.30x1022 N2O…

A: a) 1 molecule of N2O contains 2 nitrogen atoms, Hence, 5.30 ×1022 N N2O molecules will contain…

Q: How many moles of ibuprofen contain 1.62 x 10^23 atoms of C?

A: To find the number of moles of ibuprofen that has the given number of carbon atoms.

Q: How many grams of sugar C12H22O11 that consists of 1.25 x 1024 atoms of hydrogens?

A: Given that ; We have to determine the mass of sugar (in g) that consists of 1.25 x 1024 atoms of…

Q: 11) How many moles are there in 2.00 x 10¹⁹ molecules of CC14?

A:

Q: 1. What is the mass of 1.22 x 1022 molecules of silicon monocarbide? How many molecules are in 99.5…

A: 1) given, molecules of silicon monocarbide = 1.22×1022 molecules Avogadro's constant, Na =6.022 ×…

Q: A substance contains 3.024 g hydrogen, 30.97 g phosphorus, and 64.00 g oxygen. How many grams of…

A:

Q: How many grams of water (18.02 g/mol) would contain 6.54 x 1024 hydrogen atoms

A: Avogadro number = 6.022 x 1023.

Q: grams of hydrogen in 8.92 x 1022 molecules NH3

A:

Q: A.)If 4.76  mL of seawater contains about 5.46×10-14  moles of gold, how many atoms of gold are in…

A: Given, A.)If 4.76  mL of seawater contains about 5.46×10-14  moles of gold, number atoms of gold are…

Q: In 6.9 g of aluminum, there are ______ x 1023 aluminum atoms present

A: Molecular mass of atom contains 6.023 × 10^23 atoms. Molar mass of aluminium is 26.981 g/mol

Q: How many helium (He) atoms are there in 3.75 moles of helium?   3.75 x 1023 atoms 3.99 x 1025 atoms…

A: You have given - Moles of He = 3.75 mol

Q: -If you had 2.00 x 1024 atoms of Na, how many moles would you have?

A:

Q: a. How many ATOMS of phosphorus are present in 2.41 grams of phosphorus pentachloride? atoms of…

A: -> number of moles are obtained when weight is divided by atomic mass or molar mass . -> 1…

Q: How many Na+ ions are present in 3.91 g of Na2S?

A:

Q: how many grams are in 4.46 x 10 24 atoms of carbon?

A: Number of carbon atoms present = 4.46 x 1024 Atomic mass of carbon is 12 grams Atomic mass means the…

Q: What is the mass of 7.10 moles of magnesium chloride, MgCl2? Express your answer with the…

A: 1) The compound given is MgCl2 with moles = 7.10 mol Since molar mass of MgCl2 = Atomic mass of Mg +…

Q: How many moles of CCL4 are present in 7.65 X 1045 molecules of the compound? W mass of this amount…

A: Given: The number of molecules of CCl4 is 7.65×1045. The number of moles and mass of CCl4 is to be…

Q: A 2.37 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.24 x 1022…

A: Given that : The mass of N2O sample = 2.37 g Number of molecules of N2O = 3.24 x 1022

Q: How many MOLECULES of carbon dioxide are present in 6.99 grams of this compound ?  molecules. and…

A: 1) Given: Mass of CO2 = 6.99 g.