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Calculate the molar mass for each of the following:
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Basic Chemistry
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- 15. A compound contains 1.90% H. 67.6% CI, 30.5%O? What is its empirical formula? O A. HCIO B. HCIO2 C. HCIO3 O 0. HCIO4 3.A compouna was TOuna to contain e04SHyarogen s2353Sarur, ana 5.3% Oxygen. What is the empirical formula of the compound? A. HSO O B. HSO4 O C. H2S04 D. H3S04arrow_forwardA mineral ore is found to be a pure compound consisting of 29.1% sodium, 40.6% sulfur, and the st oxygen, by weight. a. Find the empirical formula (Na?S O?) for this compound 2 1 b. If the molecular weight of the compound is 158.2 g/mole, what is the molecular formula? BiNarrow_forward6. Calculate the following quantities in 0.185 mole of C,H140. a. moles of C b. moles of 0 c. atoms ofH 7. Calculate the molar mass of the following (a) Zn(C2H3O2)2 b. Ca3(C6H5O7)2 8. Calculate the mass in grams of 2.08 moles of (NH4)2SO4arrow_forward
- A 0.8715 g sample of sorbic acid, a compound first obtained from the berries of a certain ash tree, is burned completely in oxygen to give 2.053 g of carbon dioxide and 0.5601 g of water. The empirical formula of sorbic acid is Select one: a. C2H4O2 b. C3H4O2 c. CH2O d. CH4O3 e. C3H4Oarrow_forward1. All of the substances listed below are fertilizers that contribute nitrogen to the soil. Which of these is the richest source of nitrogen on a mass percentage basis? a. Urea (NH2)2CO b. Ammonium nitrate NH4NO3 c. Guanidine HNC(NH2)2 d. Ammonia NH3arrow_forward2. Calculate the molar mass of each of the following:a. (NH4)3PO4b. CH2Cl2c. CuSO4.5H2Od. BrF3arrow_forward
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