Calculate the mass percent of a solution that is prepared by adding 57.5 g of NaOH to 251 g of H2O.

City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.

What is the molar mass of ca(cio4)2

Calculate the ph of a .10m nh4cl solution. the kb value for nh3 is 1.8×10^-5