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An air stream's humidity is increased by combining it with a stream of water as shown below (hr stands for relative humidity). The water evaporates and increases the moisture content of the air stream. Determine the mass flow rate of stream B (lbm/h). stream 1 in: 100 lbm/h H2O Stream A in: T = 95.0°F hr = 20.0% Stream B out: T = 68.5°F hr = 80.0%
As the molar concentration of an acid decreases, the reaction rate with an active metal, such as magnesium, is expected to?
Write the balanced net ionic equation for the standardization of the sodium thiosulfate solution by combining IO3-(aq) + 8I-(aq) + 6H+(aq) ----->3I3-(aq) + 3H2O(l)
A student carried out the synthesis of aspirin starting with 3.48g of salicylic acid. After carrying out the reaction, recrystallizing and then drying the product, the student obtained 3.30g of aspirin. Calculate the student's percent yield.
a 250ml solution of NaOH has 20g of solute. what is the concentration in moles per litre? what is the concentration of each ion?
Draw a titration curve for both of these peptides. Be sure to label the axes properly, indicate the pKa values, the equivalence points and the buffering regions.
Write the systematic (IUPAC, or CA) names for the amines shown below. The names should have the format alkanamine.
What is the volume of a unit cell of this metal? 4.What is the edge length of a unit cell of Fe?
Positive reactions were noted in undiluted, 1/2, 1/4. What is the patient's titer.
According to the following reaction, how many grams of bromine will be formed upon the complete reaction of 24.6 grams of bromine trifluoride? bromine trifluoride (g) bromine (g) + fluorine (g)
Determine the mass of the hydrate and the mass of the sulfate after removing the water. 2. Calculate the number of moles of water and the number of the moles of the anhydrous sulfate
A 14.7-g ice cube is placed into 324 g of water. Calculate the temperature change in the water upon complete melting of the ice. Determine how much heat is absorbed by the melting ice and then use q = mC?T to calculate the temperature change of the..
Give the balanced equation for the reaction: formation of 1 mol nitrogen dioxide from its elements (heat is absorbed)
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