What is the mass in grams of 7.70 × 1014 lead (Pb) atoms? × 10 Enter your answer in scientific notation.

Q: Platinum is a precious metal that is used as a catalyst for many important industrial reactions.…

A:

Q: What is the mass of  1.42x10^24 atoms of oxygen?  grams What is the mass of 5.01x10^23 molecules…

A: In the question, following information given - Atoms of oxygen (O) = 1.42×1024 Molecules of oxygen…

Q: Aqueous hydrobromic acid HBr will react with solid sodium hydroxide NaOH to produce aqueous sodium…

A: First we will write balanced equation, then using it calculate the amount of reactants left after…

Q: The density of water at 4.00°C is 0.967 g/mL. How many molecules of water are present in a 499.8 mL…

A: Given; density of water at 4.00Co=0.967 g/mL present volume of water we have=499.8 mL moles of water…

Q: Al:CuCl2 ratio Mass of Al (g) Calculated mass of CuCl2 (g) 1:1 mass ratio 0.250   2:1 mass ratio…

A: Mass ratio:

Q: A 1/20 inch thick lead sheet is used for protection from medical X-rays. If a single lead atom has a…

A: To find out how many lead atoms thick the sheet is, we need to convert the thickness of the lead…

Q: Use the molar mass of Ca3(PO3)2 to calculate the moles of oxygen in 6.66 x 106 g of CP.  Give your…

A: given mass of  Ca3(PO3)2 = 6.66 x 106 g    Molar mass of Ca = 40.078 g/mol Molar mass of P = 30.974…

Q: Suppose you need 7.0 m of Grade 70 tow chain, which has a diameter of 3/8" and weighs 2.16 kg/m, to…

A: Given data :- Length of required tow chain = 7.0 mGrade of tow chain = 70 Diameter of tow chain =…

Q: What is the mass in grams of 7.94 x 1015 molecules of CS,?

A:

Q: Calculate the number of grams of sodium in 2.20 g of each sodium-containing food additive.

A:

Q: How many water molecules are in 6.00 raindrops? Assume that there are 20.0 raindrops in 1.00 mL of…

A: Density is defined as: It is the ratio of mass per unit volume 1 mole of any chemical species…

Q: A chemist needs 32.0 g of phenol, C6H5OH, for an experiment. How many moles of phenol is this?…

A: Given, Mass of phenol (C6H5OH) = 32.0 g Moles of phenol (C6H5OH) = ? Note: Atomic mass of Carbon (C)…

Q: A molecular compound has the following empirical formula:  CH2O.  The molar mass of the empirical…

A:

Q: A chemist prepares a solution of potassium chloride (KCI) by measuring out 0.80 g of KCI into a 100.…

A: Please find your solution below :

Q: natural rubidium has the average mass of 85.4678 AMU and is composed of isotopes Rb 85 (mass =…

A: Average atomic mass = ∑i=1XiMiWhere X = mole fraction of the isotope and M is the mass of the…

Q: mass in grams of  1.74 x 10^24 atoms of beryllium

A:

Q: White phosphorus consists of a molecule made up of four phosphorus atoms. It burns in pure oxygen to…

A: The given balanced chemical equation                                               P4…

Q: The reaction between copper and sulfur is represented by the chemical equation shown below. What is…

A: Mole=Mass/molar mass  Then mole-mole relationship We will get the answer

Q: Suppose you need 6.0 m of Grade 70 tow chain, which has a diameter of 3/8" and weighs 2.16 kg/m, to…

A:

Q: 21.1 g O2 20.5 g C8H10 Express the answers in molecules to three significant figures

A: Given data 21.1 g O2 20.5 g C8H10 The number of molecules present in the given species are

Q: Aqueous sulfuric acid (H₂SO4) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: H2SO4(aq) + NaOH(s) → Na2SO4(aq) + H2O(l)Balancing the above equation,H2SO4(aq) + 2NaOH(s) →…

Q: One millimeter of water contains about 20 drops. One gram of water contains 3.34x10^22 molecules of…

A: One millilitre of water contains about 20 drops. One gram of water contains 3.34×1022 molecules of…

Q: A chemist adds 360.0 mL of a 4.0 × 10M silver(II) oxide (AgO) solution to a reaction flask.…

A:

Q: A drop of water has a volume of approximately 0.05 mL. How many water molecules does it contain? The…

A: Density of a substance is equal to the mass of the substance divided by its volume. Write the…

Q: If you have 152 g of glucose (C₆H₁₂O₆), how many moles are present? Use the correct number of…

A: Given: Mass of glucose (C₆H₁₂O₆) = 152 g Molar mass of glucose = 180.156 g/mol

Q: Consider a mixture of three different gases: 1.90 g of argon (molecular mass = 39.948 g/mol), 3.10 g…

A: Argon, neon and helium gases do not react with each other in a mixture as they are inert gases.…

Q: A 1.58 mole sample of a pure unknown substance has a density of 1.87 g/cm3. If the sample occupies a…

A: Given,Density = 1.87 g/cm3Volume = 188 cm3Mole = 1.58 mole

Q: The amounts of gold (Au) in the three gold bullion coins are shown below. Indicate which of the…

A: 1 mol of Au contains Avogadro's number of atoms.

Q: researcher is using 7.20 x 1023 molecules of chlorine gas (Cl2) in an experiment. How many grams of…

A: Number of Molecules = 7.20 ×1023  Moles = Number of molecules/6.022×1023 = 7.20 ×1023/6.022×1023 =…

Q: Tia has a sample of pure gold (Au). She weighed the sample and the result was 85.2 grams. Tia wants…

A: Find the number of moles of gold present in the given sample. 196.967 g of gold forms 1 mole of…

Q: The formula for boron trichloride is BCl3. A. How many molecules are in 9.31 grams of boron…

A: Molecular formula of Boron trichloride is BCl3. It has three Chlorine atom and one boron atom. Molar…

Q: The formula for carbon tetrafluoride is CF4   A.How many molecules are in 4.19 grams of carbon…

A: The formula for carbon tetrafluoride is CF4 Molar mass of CF4 = 88 g mol-1

Q: The reaction between copper and sulfur is represented by the chemical equation shown below. What is…

A: Given: Molar mass of Cu2S = 159.16 g/mol Mass of Cu = 7.73 g Molar mass of Cu = 63.55 g/mol

Q: Determine the mass of the product from the following data.    Mass Aluminum Foil (g)      6.3284…

A: Given data,Mass of filter paper+product=86.2751gMass of filter paper=0.2489g

Q: A freighter carrying a cargo of uranium hexafluoride sank in the English Channel in late August…

A:

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.