Chemistry

Chemistry, 28.07.2019 08:20, HalpMahOnMahH0meW0rk

How many grams of o2 are in 5.0 moles of the oxygen gas?

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Mathematics, 08.07.2019 22:10, alyssagonzales2021

100 rules: have to answer correctly have to answer all 16 questions only answer if you only know the answer partial answers or incomplete answers not accepted will be reported point stealers beware 1) how many moles are there in 24.5 grams of cof3? 2) how many molecules are there in 150.00 grams of na2so4? 3) how many moles are there in 2.3 x 1024 atoms of sulfur? 4) how many grams are there in 7.40 x 1023 molecules of ph3? 5) how many moles are there in 7.5 x 1023 molecules of h2so4? 6) how many molecules are there in 55.5 grams of cu(clo¬3)2? 7) how many grams are there in 8.20 x 1025 molecules of water? 8) how many molecules are there in 238.05 grams of co2? 9) how many molecules are there in 2.35 grams of nh4f? 10) how many grams are there in 1.50 x 1023 molecules of n2h6? 11) how many molecules are there in 20.40 grams of sicl4? 12) how many grams are there in 3.50 moles of alcl3? 13) how many moles are there in 4.50 x 1022 molecules of ch4? 14) how many molecules are there in 9.34 grams of no? 15) how many grams does 4.00 moles of uf6 weigh? 16) how many moles are there in 230.0 grams of nh4oh?

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Chemistry, 18.07.2019 09:10, parosil

1. how many moles are in 3.4 x 1024 molecules of hcl? 2. how many grams are in 2.59 x 1023 formula units of al2o3? 3. how many grams are in 9.05 x 1023 atoms of silicon? 4. if you had 7.00 moles of pto2, how many grams would you have? 5. how many moles are in 29.2 l of oxygen gas at stp? 6. what is the volume (liters) of 75.8 g of n2 at stp? show work for each one .

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Chemistry, 07.10.2019 01:50, iselloutt4fun

85 points asap 1. how many molecules are in 7.5 grams of oxygen gas? 2. 2hgo(s) --> 2hg(l) + o2 (g) in a certain reaction 4.37 of hgo is decomposed, producing 2.5 of hg what is the percent yield for the reaction? 3. 4 fe(s) + 3o2(g) --> 2fe2o3(g) in a certain reaction, 27.3 g of iron is reacted with 79.9 g of oxygen how many grams of the excess reactant remain after the reaction is complete? 4. how many moles are in 10.25 grams of nh3? 5. what is the empirical formula mass (efm) of p2o5? 6. how many molecules are in 1.84 moles of water? 7. 4 fe(s) + 3o2(g) --> 2fe2o3(g) in certain reaction, 27.3 g of iron is reacted with 45.8 g of oxygen. what is the limiting reactant? 8. how many moles are in 2.62 x 1023 molecules of c6h14? 9. fe2o3(s)+3co(g)⟶2fe(s)+3co2(g) how many moles of co are required to completely react with 1.225 moles of fe2o3? 10. how many moles are there in 1.3 x 1024 atoms of barium? 11. how many carbon atoms are present in 0.52 moles of c2h6o? 12. a compound has a chemical composition of 51% carbon, 9.3% hydrogen, and 39.2% oxygen. what is the empirical formula?

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Chemistry, 01.11.2019 17:31, denaemarie02

1) how much volume would 2.00 moles of gas take up, under standard temperature and pressure conditions? 11.2 l 22.4 l 33.6 l 44.8 l 2) using the equation, c5h12 + 8o2 → 5co2 + 6h2o, if an excess of pentane (c5h12) were supplied, but only 4 moles of oxygen were available, how many moles of water would be produced? 1 mole 2 moles 3 moles 6 moles 3) the formation of sodium hydroxide occurs by adding sodium to water in this reaction: 2na + 2h2o → 2naoh + h2 a byproduct of the reaction is hydrogen gas. if 69 grams of sodium fully reacts with water, how many grams of h2 gas are produced? 1.0 gram 2.0 grams 3.0 grams 6.0 grams

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