mass Al = 27.0g A1 find the mass of AI mole AI जनद y=.073750. f

Q: Q2: How many grams of 23•4 6 by mass NaF SoNis heed 1:33 mol of Nat you wannă have MASS of Sot

A: The mole of NaF is = 1.33 mole The mass percent of the NaF solution is = 23.4 % The needed mass of…

Q: n an experiment, 5.575 g of iron metal reacts with 3.107 of yellow sulfur. Predict the mass of…

A: Mass is neither created nor destroyed in a chemical reaction is explained by the law of conservation…

Q: 39. A 540-g aluminum rod contains A. 20.0 mol of aluminum B. 540 Al atoms C. 1.2 x 1024 Al atoms D.…

A: A) Moles = Mass / Molar Mass Molar Mass of Al= 26.98 g/mol So Moles of Al= 540 /26.98…

Q: A student started with a sample of Cu of 8.66 grams . After the sample was burned in air, the…

A: The mass of Cu sample = 8.66 grams The mass of sample of Oxide after burning the Cu  ( Cooper oxide…

Q: Nitrogen (N) and silicon (Si) form two binary compoundswith the following compositions:Compound…

A: (a) According to given information, in compound 1 the mass percent of N and Si is 33.28 and 66.72…

Q: Atomic mass of aluminum is 27. Accordingly, which of the following statements is wrong? O A) The…

A: Molar mass of Al is 27 g  1 gram atom of Al is 27 g  Mass of Al is 27/12 times of the C  Atomic mass…

Q: 22 11. Find the mass in grams of 2.54 x 10 molecules of H,SO,.

A: Number of molecules of H2SO4 = 2.54 × 1022 molecules. Mass of H2SO4 (in grams ) = ?

Q: Which statement is probably true concerning themasses of individual chlorine atoms: All have,…

A: The correct statement regarding the masses of individual atoms of chlorine has to be determined.

Q: n your own words, define or explain these termsor symbols: (a) ; (b) particle; (c) isotope; (d) ;(e)…

A: Chemistry is the study of elements and compounds comprised of atoms, molecules or ions. It involves…

Q: The density of helium in a balloon is 1.18 g/L. If a balloon holds 2.91 L of He, how many atoms of…

A: Calculation of mass of Helium: Mass=Volume×density=2.91 L×1.18 g/L=3.4338 g Calculation of no. of…

Q: The density of helium in a balloon is 1.18 g/L. If a balloon holds 2.95 L of He, how many atoms of…

A: It is given that :Density of helium in a balloon = 1.18 g/LVolume = 2.95 L

Q: The density of helium in a balloon is 1.18 g/L. If a balloon holds 2.93 L of He, how many atoms of…

A: The mass of the species can be defined as the product of the density of the species and the volume…

Q: The ratio of the mass of O to the mass of N in N20z is 12:7. An- other binary compound of nitrogen…

A: The given ratio of mass O to the mass of N in N2O3 is 12:7 Mass of O in N2O3 = 3x16 amu…

Q: Tin has 10 stable isotopes. The heaviest, 124Sn, makes up 5.80% of naturally occurring tin atoms.…

A: a) The number atoms of 124Sn are present in 25.0 g of naturally occurring tin is to be calculated.…

Q: 29 3. What information cannot be determined from the symbol notation 14Si? O the atomic mass O the…

A: The symbol notation given is

Q: Two thirds of the atom in a molecule of water is hydrogen. What percentage weight of a water…

A: Given: Hydrogen atoms in a water molecule = 2/3 Atomic weight of hydrogen = 1.008 g/mol Atomic…

Q: Gaseous butane will react with gaseous oxygen (02) to pr 1.16 g of butane is mixed with 6.9 g of…

A: Given the chemical reaction between butane gas and oxygen gas. The products of the reaction are:…

Q: What is the average atomic mass of element X if it exists as 19.90% with a mass of 10.18 and 80.10%…

A:

Q: An unknown element X has the following isotopes: 25X (80.5% abundant) and 27X (19.5% abundant). What…

A: Given, The natural abundance of isotope I, 25X = 80.5 % The natural abundance of isotope II, 27X =…

Q: 5- Atomic mass of aluminum is 27. Accordingly, which of the following statements is wrong? O A) The…

A: The wrong ans is 1st one

Q: Calculate the mass of 500. atoms of  fluorine (F). Mass =______  g

A: One mole of a substance is equal to 6.023 x 1023 units of that substance  (such as atoms, ions or…

Q: Suppose instead of burning Mg, pure carbon weighing 3.62, 5.91, and 7.07 g were burned in an excess…

A: The Law of Definite proportion state that The same mass ratio is possessed by the elemental…

Q: 3. Mg(NO,), Mass of Mg- 24.3 x 1- 243 g/ Mass of N- Mass of O-

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: 26. 78) 6.347 x 10°atoms of nickel(III) sulfide has a mass of

A: Given, number of atoms of nickel(III) sulfide =6.347×1026 atomswe are asked to calculate the mass of…

Q: Need help

A: The mass of water in oxalic alumina is determined as,

Q: the atomic mass of C is 12.011u. How many moles of C are there in 3.50g sample of carbon?

A: Converting Mass to molesAtomic Mass of C = 12.011 Mass of C in a sample = 3.50Calculate the Number…

Q: Calculate the mass, in kg, of sample.  7.55x10^26 cadmium atoms

A:

Q: A sample of Fe weighs 82.9 grams. Will a sample of Ba that contains the same number of atoms weigh…

A:

Q: Calculate the number of atoms there are in a sample of aluminum that with a mass of 81g

A: Given that:  Mass of Aluminium(Al) = 81g  Molar mass of Aluminium = 27g/mol So, moles of Al =…

Q: 5) Find the mass of 0.02 moles of K,Cr,O,. 7'

A:

Q: n. Calculate the minimum mass of methane th

A:

Q: Natural rubidium has the average mass of 85.4678 u and is composed of isotopes85Rb (mass = 84.9117…

A: Mass of the Rb = 86.913 amu. Given data: 85.4678 amu is average mass of the Rb Mass of 85Rb =…

Q: Glculate the heal associatod with thre Coubustion af 100.0g af cetgen octaue Lassoming complce com…

A:

Q: A 0.632 mol sample of C6H8X2 has  mass of 90.07g identify X indicating the symbol and not the name…

A: The element can be identified by its molar mass. The molar mass of the elements X can be calculated…

Q: A sample of Ni weighs 73.6 grams. Will a sample of Ag that contains the same number of atoms weigh…

A:

Q: 41) A teenage child in Wisconsin throws a chunk of sodium metal into a lake consisting of freshwater…

A: Given: mass of sodium = atomic number of fluorine = 9 kg = 9000 g density of water = 1.01 g/mL…

Q: What mass of cerussite (PbCO3), would contain 35.0 grams of lead?

A:

Q: On the fictional planet Zeus, boron occurs as 55.46% of 10B (atomic mass = 10.01 u) and 44.54% of…

A:

Q: 6. The precise mass of a compound was determined by high resolution mass spec to be 84.0575. Using…

A: Given the precise mass of the compound = 84.0575 amu We have to choose the most appropriate formula…

Q: On the fictional planet Zeus, bromine occurs as 34.05% of 79Br (atomic mass = 78.918 u) and 65.95%…

A: The average atomic mass can be mathematically determined as follows: Average atomic mass = MAXA +…

Q: 1. Galena, a mineral of lead, is a compound of the metal with sulfur. Analysis shows that a 2.34 g…

A: The mass fraction of constituent of a mixture is given as the ratio of individual mass to the total…

Q: A mixture of Thallium was made that contained 60.0 % 203TI and 40.0% 205TI. The mass of 203TI and…

A: Given, Percentage of the abundance of 203Tl isotope = 60% Mass of 203Tl isotope = 202.97 amu…

Q: Questions 5 and 6 refer to the mass spectrum of an element as shown below. 100% 34 37 38 Mass famu)…

A: The y-axis represent the percentage abundance of an element and the x-axis represents the atomic…

Q: calaulate the mass of Fes formed whn 9.42 9 of Fe reacts with 8.505 ofs Fe Cs) +ZS csj→ feszcs) +2S…

A: Option is none. Amount of FeS2  is formed 15.94g

Q: A sample of Si weighs 54.8 grams. Will a sample of Ba that contains the same number of atoms weigh…

A: Answer: Since, 1 mole is always equal to 6.022×1023, therefore same number of atoms will always be…

Q: Natural rubidium has the average mass of 85.4678 u and is composed of isotopes85 Rb (mass = 84.9117…

A: Mass of the Rb = 86.913 amu. Given data: 85.4678 amu is average mass of the Rb Mass of 85Rb =…

Q: 1. Calculate the number of moles AND the mass in grams of a sample of Neon containing 2.790 X 1025…

A:

Q: Calculate the mass of sample. 72.1 mmol SO2

A: Given:  The number of moles of SO2=72.1  mmol=72.1×10-3mol The molar mass of…

Q: Please use the precision of the values in the periodic table link to determine the correct number of…

A: The atomic mass of  He = 4.003 amu The atomic mass of  Fe = 18.998 amu The atomic mass of  Na =…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.