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Solve each problem using one or more conversion factor:
a. A container holds 0.500 qt of liquid. How many milliliters of lemonade will it hold?
b. What is the mass, in kilograms, of a person who weighs 175?
c. an athlete has 15% body fat by mass. what us the weight of fat, in pounds, of a 74-kg athlete?
d. S plant fertilizer contains 15% nitrogen (N) by mass. In a container of soluble plant food, there are 10.0 oz of fertilizer. How many grams of nitrogen are in the container?
gasohol is a fuel containing ethanol c2h5oh that burns in oxygen o2 to give co2 and water. how many moles of o2 are
Problem- Tell whether the intensity of the red color of the solution would increase or decrease for each of these changes: (a) addition of more Fe3+ ion
A multiple series dilution was performed. The sample was diluted 1/5, 1/2, 1/4, 1/2. What is the final dilution
Based on the source of phosphorous (which cannot be changed) the surface concentration is 400 P atoms per 10 million Si atoms. Estimate the temperature you should dope at (C) if you must have a concentration of 100 P atoms per 10 million Si atoms ..
The burning of 80.3 g of SiH4 at constant pressure gives off 3790 kJ of heat. Calculate ?H for this reaction.
Ethanol has a heat of vaporization of 38.56 kJ/mol and a normal boiling point of 78.4 C What is the vapor pressure of ethanol at 16 C
a student mixes four reagents together thinking that the solutions will neutralize each other. the solutions get mixed
When heated, a 8.3 g sample of ammonium perchlorate, NH4ClO4 ignites and burns in the absence of any other material to produce N2, HCl, H2O and O2. Write the balanced chemical equation for this process and determine the mass of H2O produced.
A mixture of ZrO2 and CaO powders were fired to a very high temperature, then quenched to room temperature, and XRD analysis showed 3 different phases co-existed in the quenched sample. Is it likely that this system had reached equilibrium during ..
An 80.0-gram sample of a gas was heated from 25 °C to 225 °C. During this process, 346 J of work was done by the system and its internal energy increased by 6275 J. What is the specific heat of the gas?
a sample of nitrogen in a 4.5l container at a temperature of 27 degrees c exerts a pressure of 4.1 atm. calculate the
1. Which map covers the greatest area on the ground: 1:12,000 or 1:24,000? Explain your reasoning.
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