- How do doctors determine how many liters of oxygen a patient may need?

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Calculate ΔE, the system absorbs 7.29 kJ of heat from surroundings while its volume remains constant(assume that only P−V work can be done)? How many grams of NH3 can be produced from 2.13 mol of N2 and excess H2 And How many molecules of NH3 are produced from 8.60×10^4 g of H2? How much heat is needed to convert 1.00 mol of ice at –50.0 °C to water at 70.0 °C? 2. Find the composites f º g and g º f where f : R →R given by f(x) = x2 + 1 and g : R → R given by g(x) = x + 2.? 1.How can big-O notation be used to estimate the product of the first n positive integers?