The mass of a proton is about 1.007276 . Convert this number into grams and picograms. The radius of a proton is about 1 fm, Calculate the density of the proton in g/cm3

Q: Aqueous hydrochloric acid  HCl  will react with solid sodium hydroxide  NaOH  to produce aqueous…

A: The balanced chemical equation for given reaction is as follows,

Q: Atomic masses are measured in atomic mass units (amu). The amu, (1.66)(10-27) kilogram, is defined…

A: According to the given question 1 amu is 1/12th the mass of carbon-12 isotope. It is also given…

Q: Calculate the number of hydrogen atoms in a 150.0 g sample of ammonia (NH₂). Be sure your answer has…

A: The number of molecules or atoms present in the one mole of the substance is equal to the Avogadro…

Q: A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 × 104º kg. Use this…

A: Avogadro’s number is the number of atom/molecules present in one mole of any substance. And one mole…

Q: sample of lead has a mass of 0.490. Calculate the number of moles. Your answer should be rounded to…

A: Given mass=0.49g Molar mass =207 Mole= mass/molar mass Mole=0.49/207 Mole= 0.0023

Q: seous methane (CH4) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,) and…

A: CH4(g) + 2O2(g) -----> CO2(g) + 2H2O(g) Mass of CH4= 11.4 g Mass of O2 = 13 g Molar mass of CH4=…

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: -> when two numbers are added or subtracted then answer contains the lowest number of decimal…

Q: A chemist must dilute 89.2 mL of 407. mM aqueous potassium dichromate (K₂Cr₂O₂) solution until the…

A: As we know,Moles the solute remains same on dilution but volume of the solution increases.Dilution…

Q: An instrument used to detect metals in drinking water can detect as  little as 1 μg of mercury in 1…

A: According to this question, Using formulas are  No.of atoms in V Ltrs of water = mass in V Ltrs…

Q: What are 2 cups of chocolate chips converted into nanograms? 1 cup of chocolate chips = 170 g 1…

A:

Q: A sample of gold alloy has a mass of 9.3 kg. It is determined that 0.6 kg of the alloy is actually…

A: Answer:Mass percent of a substance can be calculated as:

Q: cubic angstroms (1 angstrom = 10−¹⁰) Express your answer in cubic angstroms to two significant…

A:

Q: The chemical formula for hydrogen chloride is HCI. A chemist determined by measurements that 0.0150…

A:

Q: Calculate the number of hydrogen atoms in a 70.0 g sample of ammonia (NH3). Be sure your answer has…

A: Given: Mass of NH3 is 70.0 g Molar mass of NH3  is 17 g/mol Atoms in 1 mole is 6.022×1023  To find:…

Q: g and a glass of water has a mass of 0.050 kg. An oxygen atom has a mass of 2.66 × 10 Use this…

A: Answer: Each mole of a specie has number of particles equal to Avogadro number whose value is equal…

Q: Multiply or divide the following measurements. Be sure each answer you enter contains g 93. X 32. mL…

A: The significant figure refers to particular digits in a number. According to the measurement rule,…

Q: PART A: A solution of cough syrup contains 5.00% active ingredient by volume. If the total volume of…

A: Total volume of bottle = 74.0 mL active ingredients = 5.00%  So, mL of active ingredients = 74 x…

Q: How many atoms are contained in 4.1 g of carbon? How can you round this answer to 2 significant…

A: 1 mole of any substance contains 6.023×1023 atoms.1 moles of carbon atoms weigh 12 g.

Q: The mass of a certain atom is 2.086 x 10-22 g. This is the same mass as 2.086 x 10-16 mg. 2.086 x…

A: mass = 2.086 x 10-22 g

Q: Platinum has a density of 21.45 g/cm³ 25 °C. On the other hand, water at this temperature has a…

A: Given - Density of platinum at 25°C = 21.45 g/cm3            Density of water at 25°C = 0.99997 g/ml…

Q: An aluminum atom has a mass of 4.48 × 10 g and a small airplane has a mass of 5000. kg. Use this…

A: Given, Mass of 1 atom of aluminium = 4.48 × 10-23 g Mass of small airplane = 5000 kg = 5.0 × 106 g…

Q: ultiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: In different mathematical operations like addition, subtraction, multiplication and division, the…

Q: calculate the volume in cm3 of 1,555,738,322 ng of manganese. the density of manganese is 7.20 g/cm3

A:

Q: Super fine 40-gauge copper wire has a diameter of only 0.080 mm and weighs only 44.5 g/km, Suppose a…

A:

Q: The mass of a uranium atom is 3.9526 × 10-22 grams. What is this value in nanograms? In your…

A: The mass of uranium atom = 3.9526×10–22 grams

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: -> In addition and division answer contains lowest number of decimal places.-> In…

Q: What is the mass of 1.29x10^24 particles of carbon tetrachloride ? round to 2 decimal places.

A: Given data  The number of particles of carbon tetrachloride is 1.29x1024. The mass of the sample is

Q: Gaseous methane (CH) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (Co,) and…

A:

Q: A chemist must dilute 0.0659 L of 2.78 M aqueous sodium chloride (NaCl) solution until the…

A: Given: The initial molarity of sodium chloride = 2.78 M The initial volume of NaCl solution = 0.0659…

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A:

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: 1. Answer :---- Given:Concentration = 2.094 mol/LVolume = 2.80 LMultiplying the concentration and…

Q: You recently completed a lab on density.  Define density.  Suppose we have a solid object with a…

A: Density: The mass of unit volume is known as density. The density of gold is given by: density of…

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: We have to find the number of molecules of water in a given volume. The density of water is also…

Q: A chemist must prepare 125. mL of 6.00 µM aqueous zinc oxalate (ZnC,0,) working solution. She'll do…

A:

Q: Liquid octane CH3CH26CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide…

A: Given information is Liquid octane,  CH3(CH2)6CH3 react with gaseous oxygen, O2 to produce gaseous…

Q: Super fine 40-gauge copper wire has a diameter of only 0.080 mm and weighs only 44.5 g/km. Suppose a…

A: Diameter of the wire = 0.080 mm Weight of wire per km = 44.5g   Weight of wire used to wind a magnet…

Q: 3. When a piece of metal weighing 108 g is submerged in water the volume changes from 36.9 mL to…

A: Answer of the 1st question is explained below, hope you like it. Ans: Density of the metal is 8.78…

Q: Calculate the number of phosphorus atoms in a 50.0 g sample of diphosphorus pentoxide (P₂O5). Be…

A:

Q: You have been asked to compound 8 capsules of lithium sulfate, containing 6 mEq Li* per capsule. The…

A: Given,  1 capsule contains = 6 mEq of Li+  Molar mass of Li2SO4 = 109.9 g/mole Weight of 8 capsules…

Q: What are your sub-dilutions and what is your total dilution if you made the following serial…

A: Given that, the serial of dilutions 0.4/20×0.4/20×0.2/20. We have to calculate the values of…

Q: A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 × 1027 g. Use this information to…

A: Given: The mass of brick is 4.0 kg and the mass of the earth is 6.0 × 1027 g. To find: Moles of…

Q: Liquid octane (CH₂(CH₂) CH₂) will react with gaseous oxygen (0₂) to produce gaseous carbon dioxide…

A: Hexane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: 2. As of today Gold is trading at $1841.94 per ounce. Recall that 1 ounce 28g. If we have 28.56g of…

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.