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1. Calculate the mass of t-butyl chloride required to prepare 25.0mL of a 0.050M solution? 0.116g
2. Calculate the concentration of a sodium hydroxide solution prepared by dissolving 0.400g NaOH in 1.00L of water? 16M
3. Calculate the volume of the NaOH solution prepared in (2) required to react with all of the t-butyl chloride in 1.0mL of the 0.050M solution prepared in (1)?
How much heat is required to raise the temperature of a 7.40-g sample of iron (specific heat = 0.450) from 25C to 79.8C?
Give an acceptable name and identify the functional group; and
determined its current level of YAN to be 120 ppm N. If each gram of DAP adds 0.21 gram of N to the must, how much DAP is needed?
It is important to allow each spot added to the chromatography paper to dry completely before adding another spot.
What are the other side products present in this biocatytic reaction? Name the principal enzymes taking part in this bioconversion. To which class of enzymes do they belong to?
What mass of benzoic acid, would you dissolve in 300.0 of water to produce a solution with a = 2.75?
The EPA limit for lead in the water supply is 15 parts per billion by mass. Calculate the number of lead ions present in 1.00kg of water that is at the EPA limit for lead.
A piece of sodium metal reacts completely with water as follows. 2 Na(s) + 2 H2O(l) 2 NaOH(aq) + H2(g) The hydrogen gas generated is collected over water
How many protons, and how many neutrons are present in the nucleus of each isotope? What is the natural abundance of each isotope, if the average atomic mass of gallium is 69.72 u?
where all compounds are assumed as covalent then determine which reaction must be endothermic and also explain your answer briefly?
The water temperature before the reaction was 34.5°C, and after the reaction it had risen to 52.0°C. How many moles of water were formed?
Write a balanced chemical equation for this reaction when Ferrophosphorus reacts with pyrite making iron (ll) sulfide and a compound that is
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