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What is the empirical formula if 38.23 % Oxygen, 50.61 % Cu, and 11.16 % Nitrogen?
Find the ratio of electrostatic force to gravitational force for two electrons placed at some apart in air
What is the empirical formula if 38.23 % Oxygen, 50.61 % Cu, and 11.16 % Nitrogen? [empForm]
If 2 samples of the mineral quartz were obtained from different rocks. One sample was found to consist of 3g of silicon and 4g of oxygen. The other sample consisted of 6g of silicon and 7g of oxygen. Does this suggest that quartz is a compound or a mixture. Explain.
What is the boiling point of a solution of cane sugar, C12H22O11, containing 100 g of the solute per kilogram of water?
Calculate the formula weight of a nonelectrolyte, 5 g of which dissolved in 200 g of water gives solution which has a freezing point of negative 1.04 degrees celsius.
A 5.60 gram sample is heated to an initial temperature of 100 oC. The sample is then placed in a calorimeter containing 71 grams of water starting at 24 oC. If the final temperature is 27 oC what is the specific heat of the sample?
sH2O = 4.18
A 15 gram sample is heated by 11.61 joules the result is an increase of 6 oC. What is the material the sample is made of?
If 8 liters of ethylene glycol, C2H4(OH) density = 1.113 g/ml, is placed in an automobile radiator and diluted with 32 liters of water, what is the approximate freezing point of the solution in degrees fahrenheit?
How many milliliters of 3 F ammonia can be prepared from 100ml of concentrated ammonia (28.4 per cent NH3 by weight, having a density of 0.808 grams per ml)?
