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20 millilitres of H2SO4 solution was titrated against 0.2M NaOH and required 12.4 millilitres to reach the end point. calculate the concentration of the H2SO4 solution in (a)Molarity (b) g/l.
Calculate the number of mmoles of primary standard grade Na2CO3. b. How many mmoles of HCl reacted with the Na2CO3? c. Calculate the molarity of the HCl solution.
How many millilitres of 0.200 M HCl must be added to 50.0 mL of a 0.200 M solution of NH3 in order to prepare a buffer that has a pH of 8.60? Kb of NH3 = 1.8 x 10-5.
If you take a 10.5mL portion of the stock solution and dilute it to a total volume of 0.350 L, what will be the concentration of the final solution.
What is the empirical formula of the compound if Quantitative analysis of a 5.00-g sample of a gaseous compound yielded the following results: 2.00 g sulfur and 3.00 g oxygen?
An organic liquid is a mixture of methyl alcohol and ethyl alcohol. A 0.220g sample of the liquid is burned in an excess of O2(g) and yields 0.342 g CO2(g). What is the mass of methyl alcohol in the sample?
How much heat is required to warm 223 g of ice from -46.3°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
Have you observed that when you spill water over your skin on a hot day it will cool you down but if you spill vegetable oil in place of water it will not cool you down give explanation for this difference?
The tabulated mass of Cl is 35.45 amu. The two dominant isotopes of naturally occurring Cl are 35Cl (34.97 amu) and 37Cl (36.97 amu).
a)Calculate the theoretical yield of when 109g of C2H6 reacts with 228g Cl2 of , assuming that and react only to form C2H5Cl and HCl .
What mass of ice at 0C must be added to 45g of water at 20C to cool it to the final temperature of 10C?
Determine What is the final concentration and calculate what is the Ksp of this salt at temperature of 25 degrees Celsius?
Find pH of A mixture formed by adding 44.0 mL of 2.5×10-2M HCl to 150mL of 1.5×10-2 M HI.
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