minning science
calculate the pH at 25 degrees of 0.080 mol dm^-3 HNO3
Chemistry
What is the expected mass of anhydrous salt formed after the waters of hydration of CoCl2·6H2O are driven off completely by heating, resulting in a mass loss of 2.000 g water?
computer information
I am tring to find as much information on the digital Divide in the USA?
Chemistry
How much heat in kilojoules is needed to bring 1.49 kg of water from 28.1 to 97.1 °C (comparable to making four cups of coffee)?
Chemistry
Consider the reaction: N2(g) + 3H2(g) ¡ú 2NH3(g) question: calculate ¦¤S¡ã in J¡¤K-1.
Chemistry
Calculate ÄG°373 in kJ for the following reaction at 100 °C, using data from your text. 5SO3(g) + 2NH3(g) --> 2NO(g) + 5SO2(g) + 3H2O(g) Enter your answer in decimal form, including the sign.
Chemistry
Using data in table below and S °(NaCl(s))= 72.38 J·mol-1·K-1, calculate ÄfS° for NaCl(s) in J·mol-1·K-1. Compound S °, J·mol-1·K-1 Compound S °, J·mol-1·K-1 C(s) 5.69 H2(g) 130.6 N2(g) 191.5 O2(g) 20...
Chemistry
Using data in table below and S °(NaCl(s))= 72.38 J·mol-1·K-1, calculate ÄfS° for NaCl(s) in J·mol-1·K-1. Compound S °, J·mol-1·K-1 Compound S °, J·mol-1·K-1 C(s) 5.69 H2(g) 130.6 N2(g) 191.5 O2(g) 20...
Chemistry
How many joules of heat are needed to increase the temperature of 18.4 g of silver from 17.0 to 41.0 °C?
Chemistry
A 7.2 ´ 10-3 M solution of acetic acid is 5.0% dissociated. In a 7.2 ´ 10-4 M solution, the percentage of dissociation would be a. the same. b. >5%. c. <5%. d. zero. e. none of these
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