(a)
Interpretation:
The mass of single atom of 12-Carbon should be calculated.
Concept introduction:
One atomic mass unit is given below
Number of moles can be calculated by using following formula,
(b)
Interpretation:
The mass of
Concept introduction:
One atomic mass unit is given below
Number of moles can be calculated by using following formula,
(c)
Interpretation:
The mass of
Concept introduction:
One atomic mass unit is given below
Number of moles can be calculated by using following formula,
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
Fundamentals of General, Organic, and Biological Chemistry (8th Edition)
- Ferrous sulfate is one dietary supplement used to treat iron-deficiency anemia. What are the molecular formula and molecular mass of this compound? howmany milligrams of iron are in 250 mg of ferrous sulfate?arrow_forwardArrange the elements Na, Si, and S in the order of(a) decreasing atomic radius.(h)increasing first ionization energy.arrow_forwardHow many grams of glucose (C6H2O6 molecular mass =180daltons) would be present in one liter of a 1M (molar) solution of glucose?arrow_forward
- For Be-10, find the: a.) mase defect (in grams) b.) binding energy in kilojoules per mole. mass proton= 1.00728 amu; mass neutron= 1.00867 amu; mass Be-10 = 10.013534679 amuarrow_forwardEthylene glycol, the main ingredient in antifreeze, contains 38.7% carbon, 9.7% hydrogen and 51.6 % oxygen. Calculate the empirical and molecular formulas for ethylene glycol. Given the molar mass is approximately 60 g/mol. A) Empirical formula: B)Molecular formula: Explain how you obtained the Molecular formula (b)?arrow_forwardBalance the following (fictional) chemical equations by supplying the correct coefficient. Do not leave any space blank (in other words, write in 1 if you would be leaving it blank): R(OZ)2 - RY2+ Z20 a) ZY+ b) D2 (g) + L2 (g) – DL3 (e)arrow_forward
- A compound with empirical formula C2H5O was found in a separate experiment to have a molar mass of approximately 90 g. What is the molecular formula of the compound?arrow_forwardIodine has 37 known isotopes. Therefore, the atomic mass has a range of 108-144 amu. Which of the following statements concerning iodine is correct? A) The isotopes of iodine have between 55 and 91 protons. B) An atom of iodine can have between 55 and 91 neutrons. C) The isotopes of iodine will always have the same number of neutrons, but the protons can vary. D) The isotopes of iodine have between 108 and 144 neutrons, but the number of protons will not vary.arrow_forwardCopper(II) acetate containing 6Cu is used to study brain tumors. This isotope has a half-life of 12.7 hours. If you begin with 25.0 ug of "Cu, what mass remains after 63.5 hours?arrow_forward
- Nicotine, an alkaloid in the nightshade family of plants that is mainly responsible for the addictive nature of cigarettes, contains 74.02% C, 8.710% H, and 17.27% N. If 40.57 g of nicotine contains 0.2500 mol nicotine, what is the molecular formula?arrow_forwardHemoglobin is the oxygen-carrying molecule of red blood cells, consisting of a protein and a nonprotein sub- stance. The nonprotein substance is called heme. A sample of heme weighing 35.2 mg contains 3.19 mg of iron. If a heme molecule contains one atom of iron, what is the molecular weight of heme?arrow_forwardWhat is the mass in grams of 30.50 moles of KBr?arrow_forward
- Principles Of Radiographic Imaging: An Art And A ...Health & NutritionISBN:9781337711067Author:Richard R. Carlton, Arlene M. Adler, Vesna BalacPublisher:Cengage Learning