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how many mM of nitrogen atoms in 1g/L of (NH4)2SO4 ? molecular mass of (NH4)2SO4 is 132.14g/mol
C double bond O x2 for the first reaction and in the second reaction the CO has a tripple bond i've tried to do this several times and have gotten 166.5 kj/mol 81kj/mol and 48.5 kj/mol and all of them are wrong
carboxylic acid is burned in oxygen, producing 1.462 g of CO2 and 0.6019 g of H2O. Determine the empirical formula of the carboxylic acid.
Calculate the final temperature of a mixture of 170.0 g of ice initially at -7.0 degrees C and 318.0 g of water initially at 94.0 degrees C.
Talc is a mineral that has low conductivity for heat and electricity and that is not attacked by acid. It is used as talcum powder and face powder. A sample of talc weighs 35.97 g in air and 13.65 g in mineral oil (d = 1.75 g/cm3). What is the den..
Sterling Silver is 92.5% silver by mass. How many lbs of silver are there is a 45.0 Mg piece of sterling silver?
What is w when a gas is compressed from 38.3 L to 28.8 L using a constant external pressure of 745 mmHg
Atrazine is an herbicide widely used for corn and is a common groundwater pollutant in the corn-producing regions of the United States. The log Kow for atrazine is 2.65.
What was his wavelength at his average speed, if he weighed 207 lbs at the time of the race?
What is the % by mass of CaCl2.2H2O in the salt mixture B. how many grams of the excess reactant K2C2O4.H2O reacted in the mixture C. How many grams of the K2C2O4. H2O in the salt mixture remain unreacted
The sample requires 48.24 mL of 0.08893 mol/L Na2S2O3 to reach the equivalence point. Assuming that the AU3+ and Li+ ions are unreactive during the titration, determine the mass percent of LiCLO in the sample.
What is the initial concentration (in M) when 15.3 mL of a potassium hydroxide solution was diluted with 15.1 mL of solvent to a final concentration of 0.561 M? Assume the volumes are additive.
The size of a diamond is measured in carats. (1 carat=.200 g) The density is 3.51 g/cm3. How many carats is a diamond that measures .
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