Chemistry

Chemistry, 29.07.2019 22:30, smelcher3900

How many moles are in 30 grams of h2o

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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, 30.07.2019 13:30, kaitlyn215

1. for the balanced equation shown below, how many moles of o2 will react with 0.3020 moles of co2? 2c2h5oh + 6o2 → 4co2 + 6h2oa. 0.151 moles o2 b. 0.201 moles o2 c. 0.302 moles o2 d. 0.453 moles o2 2. how much heat is required to convert 74 grams of ice at -4 c into 74 grams of water at 52 c? use the information below: hf= 334 j/ga. 606 j b. 24,716 j c. 4000 j d. 41, 406 j

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Chemistry, 01.08.2019 01:00, tadams9922

Note: moles to grams, or grams to moles you will need to use molar mass (g/mol).1)how many moles are in 20.2 g hcl? 2) how many grams are in 2 moles of hcl? note: when converting from moles to molecules, you need the following: 1 mole = 6.022 x 1023 molecules 3) how many molecules are in 23 moles of sodium? 4) how many moles are in 8.022 x 1026 molecules of nacl? note: 1 mole = 22.4 l 5) how many moles are in 5 liters of h2 gas? 6) how many liters are in 5 moles of h2 gas? multiple conversions in one problem. 7) how many grams of hcl will be produced with 16.2 grams of h2 and excess cl2? (h2 + cl2 -> 2hcl) 8) how many liters are there in 46 g of cl2 gas?

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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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