HCI and Cl₂ in the equation 4HC1(g) + O2(g) → 2C12 (g) + 2H₂O(g) 1 mol HCI 1 mol Cl₂ 2 mol HCI 1 mol Cl₂ 4 mol HCI 2 mol Cl₂ 2 mol HCI 1 mol Cl₂ and and and and 1 mol Cl₂ 1 mol HCI 1 mol Cl₂ 2 mol HCl 2 mol Cl₂ 4 mol HCl 1 mol Cl₂ 2 mol HCI

How many NH3 molecules comprise one mole of NH3? What is the mass in grams of one mole of NH3? What is the mass in grams of one molecule of NH3?

A 0.479 g sample of nitrogen, oxygen or neon gas occupies a volume of 265 mL at 157 kPa and 20°C. What is the molar mass and iden- tity of the gas? 1. 32.0 g mol, O2 2. 20.1 g - mol , Ne

2.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 160. g/mol, is burned completely in excess oxygen, and the mass of the products carefully measured: product mass carbon dioxide 3.30 g water 0.90 g Use this information to find the molecular formula of X.

What is the mass of one mole of Al2(SO4)3? 75.04 g O 342.14 g 75.04 mol 342.14 mol

Calculate the number of moles in each sample. 74.9 g HCCl3 Express your answer with the appropriate units.   10.7 g C6H12O6 Express your answer with the appropriate units.   28.4 kg C2H4 Express your answer with the appropriate units.   22.6 g of dinitrogen monoxide Express your answer with the appropriate units.

Calcium (ca), the fifth most-abundant element on Earth, is always found combined with other elements because of its high reactivity. How many moles of calcium are in 252 g sample of Ca? O 10100 mol Ca 40. 08 mol Ca 6. 29 mol Ca 6. 02 х 1023 mol Ca

The distinctive taste of vanilla arises from an organic compound composed of only carbon, hydrogen, and oxygen. Burning 30.4 g of this compound with excess oxygen produced 70.4 g CO2, and 14.4 g H2O. In a separate experiment, the compounds molecular mass was determined to be 150.1 g/mol. Based on this information, determine the molecular formulaof this compound.

8.50 g of a certain compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 176. g/mol, is burned completely in excess oxygen, and the mass of products carefully measured: product mass carbon dioxide 12.75 g water 3.48 g Use this information to find the molecular formula of X.

Nicotine, C10H14N2, is an alkaloid that is produced by "nightshade" family of plants as an antiherbivore chemical, targeted specifically to insects. In mammals, nicotine acts as a stimulant and is highly addictive, resulting in dependence similar to drugs such as heroin or cocaine. Calculate the number of molecules of nicotine in a 860 gram sample. H Budyn Li CHI Na Mg 23000 K Petan mo Be Rb Sr bodn (Tamulan 38 Ca Sc Ti C Scanden H Cs Ba Caurs Bater Ra 7.19 x 1024 2.3 x 1024 9.3 x 1023 7.3 x 1023 3.19 x 1024 4.41 x 1023 35-403 VB 48 Series Zr Bemes 5 VB 58 Akali VIB 65 Periodic Table of the Elements Abo 2699 7 VIB Cr Mn Malin 4L 443 44 Nb Mo Tc Ru Rh Dhadin Ta W Re Os Engin SI Symbol Twan 136225 +345 Tration Metal 10 Back 11 IB 18 17 #B 28 427 442 Fe Co Ni Cu Zn Ga -4-4 47 Pd Ag Frid 13 Cd 14 34 ja AI In Sn Sb Te Bi Po gumow 1113 104 113 114 Rf Db Sg Bh Hs Mt Ds Rg Cn Nh FI Mc Lv defen Snars Dan 14 IVA 12 Derin Coltene 24 Mes Si Cette Cer Pt Au Hg Tl Pb Pate 15 VA IACUT 17 VIIA 7A 16…