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Practice ProblemBUILD
For which of the following molecular formulas is the formula shown in parentheses the correct empirical formula?
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Chemistry
- Which of the following is the correct formula for manganese (v) nitrate Mn3(NO3)2 Mn4(NO3)4 Mn(NO3)2 Mn3(NO3)5 Mn(NO3)5 Answer not listedarrow_forwardPractice Exercise 1Tetracarbon dioxide is an unstable oxide of carbon with thefollowing molecular structure:What are the molecular and empirical formulas of thissubstance? (a) C2O2, CO2 (b) C4O, CO (c) CO2, CO2(d) C4O2, C2O (e) C2O, CO2arrow_forwardPractice Exercise 2Write the empirical formula for the compound formed by(a) Na+ and PO43-, (b) Zn2+ and SO42-, (c) Fe3+ and CO32-.arrow_forward
- Practice Exercise 1Which of the following is an incorrect representation for a neutralatom? (a) 63Li (b) 136C (c) 6330 Cu (d) 3015 P (e) 10847Agarrow_forwardPls help with practice problem Provide proper, accepted chemical namearrow_forwardDirection: Find the molecular formula of the followingcompounds 7. A compound contains 62.0% C, 10.4% H, and27.5% O. Determine the empirical formula forthis compound. After analysis, it was found thatthe compound’s molar mass is 58.1g. What isthe compound’s molecular formula?8. Glucose, one of the main sources of energyused by living organisms, has a molecular massof 180.2g. Chemical analysis shows that glucoseis 40.0% C, 6.71% H and 53.3% O. Determineglucose’s molecular formula.9. A class of compounds called sodiummetaphosphates were used as additives todetergents to improve cleaning ability. One ofthem has a molecular mass of 612g. Analysisshows the composition to be 22.5% Na, 30.4% P,and 47.1% O. Determine the molecular formulaof this compound.10. Find the molecular formula for a compound thathas a molecular mass of 92g.mole. The %composition of the compound is 30.4% N, and69.6% O.arrow_forward
- MSG is monosodium glutamate, a flavor enhancer added to many foods. Monosodium glutamate was found to contain 35.51% C, 5.15% H, 37.85% O and 13.6% Na, and 8.26% N. It has a molar mass of 169 g/mol. What is the molecular formula of monosodium glutamate? Please show workarrow_forwardThe formula for dextrose is as follows: C6H12O6. If the atomic mass of hydrogen is 1 Da, of carbon 12 Da, and of oxygen is 16 Da, what is the molecular weight (MW) of dextrose? Question options: 348 g/mole 24 g/mole 696 g/mole 180 g/molearrow_forwardSolve:a) How much is 3.80 moles of Carbon (C) in C atomsb) How much 4.50 moles of Oxygen (O) equals in O atomsc) How much is 1.90 moles of Calcium (Ca) in Ca atoms?arrow_forward
- Question 11 What formula/name combination is correct? Group of answer choices Chromium(III) sulfide is Cr2S3 Zinc(II) oxide is Zn2O Sulfur(VI) oxide is SO3 Iron trichloride is FeCl3 None of these answers is correctarrow_forwardWhat is the name of the compound with formula, Mg(ClO2)2.6H2O ? The answer is …………………………… 3arrow_forwardWhat is the chemical formula for the compound commonly called ammonia? Question 1 options: a) KNO3 b) CaO c) MgSO4 d) NH3 Which of the following shows the chemical formula for the binary ionic compound calcium chloride? Question 2 options: a) CaCl2 b) Ca2Cl3 c) Ca2Cl d) CaCl H2O is the chemical formula for the compound with which common name? Question 3 options: a) water b) potash c) lime d) ammoniaarrow_forward
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co