Chemistry

STOICHIOMETRY 1. What is the SI symbol of groin? A. thouB. molC. moleD. molecules 2. How galore(postnominal) atoms are there in the compound (NH4)3PO4? A. 13B. 16C. 20D. 48 3. What is the kitty of 26.0 mol of O? A. 1.625gB. 26gC. 208gD. 416g 4. A mole of H2O contains ________ A. 6.02 x 1023 atoms C. 6.02 x 1023 ions B. 6.02 x 1023 gigabytesD. 6.02 x 1023 molecules 5. What ts the correct unit of a dominion tilt? A. gramB molC. gram/molD. mole/gram 6. How many individual atoms are there in 250 grams of O2? A. 4.70 x 1024 atomsC. 4.70 x 10 -24 atoms B. 4.70 x 1023 atomsD. 4.70 x 10 -25 atoms 7. The mass of unrivaled mol is called ________ A. molecule B. hero massC. percentage firearmD. percent yield 8. What is the actual number of atoms pass on in whizz molecule? A. molecular(a) reflexionC. percent yield B. percent written materialD. Theoretical yield 9. Which of the following is an example of an experiential figure? A. CH2B. C3H8OC. C5H10D. K2Cr2O7 10. The molar mass of glucose is ______ (H = 1, C = 12, O = 16) A. 24gB. 53gC. 180gD. 342g 11. When referring to mass sum of the atomic masses of the atoms represented by the dominion of a molecular substance, the correct term used is A.

atomic massB. formula weight C. molecular mass D. molecular weight 12. A mole of CO2 contians A. 6.02 x 1023 ions C. 6.02 x 1023 formula ions B. 6.02 x 1023 moleculesD. 6.02 x 1023 atoms 13. The mass of the products in a chemical substance reaction depends on th! e amount of A. excess reactantB. limiting reactantC. oxidizing agentD. decrease subtannce 14. What is the formula mass of CaCl2? (Ca = 40.1, Cl = 35.45) A. 75.6 amuB. 110.9 amuC. 111.1 amuD. 756 amu 15. What is the formula of the hydrated salt, CuSO4(5H2O? (Cu 63.5, S= 32.1, O= 16, H = 1) A. 112.6 amuB. 185.6 amuC. 201.6 amuD. 249.6 amu 16. How many...If you want to get a undecomposed essay, set it on our website: OrderCustomPaper.com

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