200.0 mL of a 0.830 M solution of KCl is diluted to 600.0 mL. What is the new concentration of the solution?
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- To make sealant with glue, the glue needs to be mixed with water. The ratio of glue to water is 5:2. How much sealant can be made using 2.5 litres of glue? Select one: 0.5 litres 3.5 litres 8.75 litres 1 litre.write the balanced chemical equation for P+O2=P2O529. A solution containing 90% by volume of alcohol (in water) runs at 1 gal/min into a 100-gal tank of pure water where it is continually mixed. The mixture is withdrawn at the rate of 1 gal/min. When will it start coming out 50% alcohol?
- a.How many moles of sugar are there in 5 L of sugar water that has a concentration of 0.25 M? b. If you had 60 grams of NaOH and you had to prepare 1.0 M of solution, how much water would you use to dissolve the sodium hydroxide?A sedimentary rock weighs 202 N in air and 120 N when submerged in an alcohol solution with a density of 700 Kg/m3. What is the density of the rock?It has been suggested that Napoleon died as a result of arsenic poisoning since the growing end of his hair has been found, through NAA analysis, to have abnormally high levels of arsenic. What hair sample mass (in grams) is needed to detect arsenic with a concentration of 0.001 ppm? NEED TYPING DETAIL ANS NOT HANDWRITTEN
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