Determine the numbers of times can you divide
Determine the numbers of times can you divide evenly a piece of 10 cm copper wire until it is reduces to two separate copper atoms if the diameter of a copper (Cu) atom is roughly 1,3*10-10m.
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When solid sodium hydrogen sulfite, NaHSO3, is heated, sulfur dioxide gas, SO2; solid sodium sulfite, Na2SO3; and the water vapor are produced.
A sample is composed of a mixture of CuSO4 and CaCO3· 5H2O. A chemist decided to calculate the mixture by dehydrating it by heating it to 120° for12 hours. If a 5.327 g sample weighed 4.281 g after the dehydration, determine the percent
Determine the numbers of moles of H2SO4 are required to make the 855 grams of K2SO4 by using the equation
Two hundred fish caught in the Cayuga Lake had mean length of 13.9 inches. The population standard deviation is 3.6 inches. (Give your answer correct to two decimal places.)
The protein has a MW of 35,000. One is interested in determining the affinity of P for leonine. An amino acid binding protein (P) is released from E. coli by the osmotic shock, and purified to homogeneity.
When 1.00 gram of Compound D is totally combusted, 0.735 g H2O and 0.900g CO2 are collected. Calculate the complete empirical formula of compound D.
Develop a 0.99 confidence interval using the sample data given below. (Give your answers correct to two decimal places.)
Discuss what mass of AlBr3 will be formed if 1.00 gram of Al totally reacts with the excess Br2? Aluminum will react with the bromine (Br2) to produce AlBr3.
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