Hydrogen and oxygen are combined to form water according to the equation below: 2H2 + O2→2H2O How many moles of water are produced if 10 g of oxygen gas are reacted? Type your answer as a number with 1 significant figure. Make sure to include the correct units in your answer. Units are a type of measurement i. e. gram (g) or mole (mol). Do not include the chemical formula in your answer.

Infants born with severe respiratory problems are sometimes given liquid ventilation: they breathe a liquid that can dissolve more oxygen than air can hold. one of these liquids is a fluorinated compound, cf3(cf2)7br. the solubility of oxygen in this liquid is 66 mlo2 per 100 ml liquid. in contrast, air is 21 % oxygen by volume. calculate the moles of o2 present in an infant's lungs (volume: 12 ml ) if the infant takes a full breath of air. assume a pressure of 1 atm in the lungs.

Concerning the 10.0 ml of 0.50 m nacl to 100 ml of solution: when a solution is diluted, does it change the number of moles dissolved?

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have