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A hydrocarbon with the empirical formula C2H3 , and molecular formula CaHb , takes 1.157 times longer to effuse through a porous plug than neon at the same temperature and pressure. What are the values of the integers a and b in the molecular formula of the compound?
calculate the molarity of a solution of glycerol made by dissolving 68.000 glycerol at 15 in enough water to make
Why does the pH of the blood decrease in a person who has digested tremetol? Answer A. Lactic acid build up decreases blood pH B. Hydrogens pumped by the electron transport chain decrease blood pH C.
how many moles are present of an ideal gas at the following conditions: 1.0 atm, 25.0 C, and occupying 22.4 L, The Lewis structure for PF3 shows that the central phosphorus atom has _______ nonbonding and
Galactose is concentrated in a cell by a transporter driven by ATP hydrolysis. What is the ratio of ADP to ATP required to maintain a galactose concentration gradient of 100,000:1
Solutions with greatest long-wavelength UVA absorption: Name of strongest UVA absorbing ingredient
If, in a certain experiment, over a specific time period, 0.0055 mol PH3 is consumed in a 2.3 L container during each second of reaction,
The boiling point of methanol (CH 3 OH) is 64.7 o C and delta H vap = 71.8 kJ/mol. What is delta S for the vaporization of 2.15 mol of CH 3 OH at 64.7 o C?
a student placed 15.0 g of glucose c6h1206 in a volumetric flask added enough water to dissolve the glucose by swirling
Please review the occurrence and cycling of calcium in nature, along with its use. Analyze and evaluate the article as to it's contemporary relevance regarding the elements availability, health implications and environmental impact.
If 3.8kcal of energy is released when 1 gram of glucose is combusted, how many kcals are released when 0.689 moles of glucose are combusted
Why is it necessary to use relatively exotic reagents to form precipitates with the Lithium group ions
Which is predicted to be the most ionic substance?
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