Express the masses of proton and neutron using six significant figures. Express the mass of electron using two significant figures. Enter your answers numerically separated by commas.

Q: Purple spheres represent iodine atoms, white spheres represent hydrogen atoms, and all of the…

A: Given:  Purple atom = Iodine (I) White atom = Hydrogen (H)

Q: A sample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of…

A: Given : Mass of carbon in sample 1 = 12.0 g Mass of chlorine in sample 1 = 106.4 g Mass of hydrogen…

Q: In Section 1.10, it was stated that 1 mol of sand grains would cover the state of Texas to several…

A: SOLUTION: Step 1: Simple Volume of 1 sand grain = (0.10 mm)3 = 0.001 mm3. 1 mole of sand =…

Q: 2. Show that volt per meter is the same as newton per coulomb.

A: Given:- Show that volt per meter is the same as newton per coulomb.

Q: The radius of a lead atom is 175 pm. How many lead atoms would have to be laid side by side to span…

A: Given: Radius of each lead atom = 175 pm = 175 X 10-12 m                          (Since 1 m = 1012…

Q: Measuring the mass and volume of a piece of chalk is a way of investigating its _____. A.Chemical…

A: 1. We need to check if mass and volume are intensive or extensive properties and if they relate to…

Q: A sample of tryptophan synthesized in the laboratory contains 29.4 g of carbon and 7.12 g of oxygen.…

A: Law of definite proportions indicate that irrespective of source, the amount of substance present in…

Q: Naturally occurring cobalt consists of only one isotope, 58.9332. A synthetic radioactive isotope of…

A: From given data;  Initially % of 60Co is determined and then weight of 60Co is calculated as…

Q: A copper atom has a mass of 1.06 x 10 g and a penny has a mass of 2.5 g. Use this information to…

A: Mass of Cu atom = 1.06 × 10-22 g Mass of penny = 2.5 g 1) Mass of 1 mole of Cu atom =? 2) Number of…

Q: Name each of the following elements : As, I, Xe, He, C, Si

A: Name of the given element- As = Arsenic I= Iodine Xe= Xenon

Q: An atom of a particular element has a volume of 7.8*10^-31 m^3. What is this volume in cubic…

A:

Q: Rank the particles from most to least massive

A: In an atom; The mass of Neutron=1.693×10-27 kgThe mass of Proton=1.673×10-27 kgThe mass of…

Q: This picture represents Atoms of an element O Molecules of an element O Molecules of a compound A…

A: An atom is a single entity whereas a molecule consists of two or more atoms. Atoms in a molecule…

Q: A sample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of…

A: Total mass of chloroform in first sample = mass of C + mass of H + mass of Cl = (12.0+106.4+1.01) =…

Q: A  penny  weighs  2.507g  and  is  made  of  an alloy which  is  97.6%  zinc  and  2.4%  copper.…

A:

Q: What is the mass in grams of 1.37 × 1016 chromium atoms? Put your answer in box in scientific…

A: Given: Number of chromium atoms, Cr = 1.37 × 1016 atoms.

Q: Determine the number of atoms in 1.85×10^-3L of Mercury. [The density of mercury is 13.5g/mL.]

A:

Q: The volume of a single iridium atom is 1.04x10-23 cm³. What is the volume of a iridium atom in…

A: Given: Volume of iridium in cm3 = 1.04 X 10-23 cm3.

Q: What do you look at on the periodic table to determine the number of protons of a element

A: The atomic number of an element tells the number of electrons in it. An element in its neutral state…

Q: A sample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of…

A: According to law of constant proportional, any chemical compound will always contain the elements in…

Q: - Compare Two compounds that contain copper and chlorine have the following masses: Compound A:…

A:

Q: A sample of chloroform is found to contain 12.0 g of carbon, 106.4 g of chlorine, and 1.01 g of…

A: According to the law of multiple proportions two or more elements are combined to form a compound in…

Q: How many protons and electrons are there in a neutral atom of each of the following elements? Part C…

A: A neutral element with atomic number x has x number of protons and x number of electrons.  Here, the…

Q: When working in the lab, I take the mass of a sample of ammonium (NH3) and I find it to have a mass…

A: The mass of ammonia is = 45.74 g The mass of nitrogen is =? The mass of hydrogen is =?

Q: The volume of a sample of lead (density 11.3 g/cm) was determined to be 13.4 cm3. Calculate the mass…

A: Mass of the sample = volume x density                                 = 13.4 cm3 x 11.3 g/cm3…

Q: Use the conversion factor: 1 amu=1.66054x10-24 g to answer the questions. 1. How many atomic mass…

A:

Q: A sample of aspirin synthesized in the laboratory contains 26.0 g of carbon and 15.4 g of oxygen. A…

A: Given : 1st sample contains 26 g of carbon and 15.4 g of oxygen. 2nd sample contains 8.16 g of…

Q: If a sample contained 9.65 x 1023 atoms of iodine, how many grams would this be? Round to one…

A:

Q: Mass of one a mu) Carbon Type 1                                12.0 Carbon Type 2…

A: The sum of all the values of individual masses divided by the total number of items in the sample is…

Q: If a silver dollar contains 91.0% silver by mass, how many kilograms of silver can be extracted from…

A: As per the given information given silver dollar contains 91.0% silver  here, 1 kg of silver dollar…

Q: An atom of a particular element has a volume of 7.8 X 10-31 m3. What is this volume in cubic…

A: Find volume of atom in cubic nanometre

Q: A sample of chemical X is found to contain 5.0 grams of oxygen, 10.0 grams of carbon, and 20.0 grams…

A:

Q: What is the correct symbol for potassium?

A: The given element name is potassium.

Q: The mass of a single aluminum atom is 4.48×1023 grams. How many aluminum atoms would there be in 185…

A: Given that, The mass of a single aluminum atom is 4.48×10-23grams = (4.48×10-23×103)milligrams =…

Q: Calculate the mass in grams of 1 neutron given the following conversion factors: 1 n° = 1.008665…

A: Given  1n0 = 1.008665 amu 1 amu = 1.660538 x 10-24 g

Q: Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 2.7 fm…

A:

Q: How is the chemical symbol of an element determined? Explain in 200 words.

A: Given : Elements  To find : Chemical symbols Solution : Elements are those Compounds which cannot be…

Q: Explain in your own words, by writing a short paragraph, how the atomic theory predicts the law of…

A:

Q: A study of the Earth by The National Aeronautics and Space Administration (NASA) determined there…

A: Given  7.00 x 1011 tons of carbon    Conversion factor:  1 ton = 907.19 kg  1 kg = 1000 g = 103 g…

Q: How many protons, neutrons, and electrons?

A: The number of protons is always equal to the atomic number while number of neutrons is equal to mass…

Q: A piece of copper contains 6.7×108 atoms. What is the mass of the sample, in units of kilograms

A: molar mass of Cu = 63.55 g/molThis is mass of 6.022×1023 atomsuse:mass of 1 atom = molar…

Q: element? Element Name Period Group # Family Туре Na Fe Br Xe Ca

A:

Q: Which of the following is not a correct mass of one sodium atom? a) 23 amu b) 23 g c) 3.82x10-23 kg…

A:

Q: Lithium has only two naturally occurring isotopes. The mass of lithium-6 is 6.01512 amu and the mass…

A: Lithium has only two naturally occurring isotopes. The mass of lithium-6 is 6.01512 amu and the mass…

Q: What is the volume of water graduated cylinder mass = 75.00 water mass = 45.00, water +bic mass =…

A:

Q: A student performed an experiment of heating a hydrate and obtained the following data.    the mass…

A: Mass of the empty crucible =17.556g -----Equation A Mass of crucible and a hydrate= 21.018g…

Q: Which element is represented by the following symbol A. Chromium B. germanium C. barium D. iron

A: The given symbol of element is                       5624X  Here,  Mass number of element = 56…

Q: Determine the number of atoms in 1.96 mL of mercury. The density of mercury is 13.5 g/mL

A: Given: Density of mercury = 13.5 g/mL Volume of mercury = 1.96 mL We know,…

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.