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If 200 ml of gas at 400 torr is transferred to a 20.0 ml cotnainer. What will the new pressure be if the temperature is kept constant?
determine how many grams of CaH 2 are required to generate 145 Litres of hydrogen gas if the pressure of hydrogen is 825 mm Hg at temperature of twenty one degree Celsius? .
Determine the final concentration if A 129 mL portion of that solution is diluted using water of 149 mL.
Give equations for the reaction of salicylic acid with the following: a) acetyl chloride/pyridine b) methanol/HCl/heat c) sodium bicarbonate, room temperature
The enthalpy of formation of ethanol, C2H5OH, is 277.o kJ/mol at 298.15K. Calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 and H2O.
A buffer contains 0.30 M acetic acid and 0.20 M sodium acetate. What is the pH of the buffer as prepared and after 0.030 mol/L of a strong acid or 0.030 mol/L of a strong base are added (Ka = 1.8 x 10-5).
how much heat is absorbed when 63.7g h2o at 100 c and 101.3 kpa is converted to steam at 100 c.
Arrange the bases in increasing order of strengths. I) deuterated ammonia (ND3) Kb = 1.1 × 10?5 II) hydrazine (NH2NH2) Kb = 1.7 × 10?6 III) ammonia (NH3) Kb = 1.8 × 10?5
How much energy (heat) is released when 1.9 moles of H2 reacts with 0.7 moles of Cl2 to create HCl(g) if the ΔHrxn = -184.6 kJ.
Organic Chemistry and Genetics Problems - Write an equation for the complete hydrolysis of 2'-deoxythymidine-5'-monophosphate (dTMP) to its component parts.
25.0 ml of 0.212 M NaOH ia neutralized by 13.6 ml of an HCl solution. The molarity of the NAOH solution is?
A solution of malonic acid, H2C3H2O4 was standardized by titration w.1000M NaOH solution. If 20.76 mL of the NaOH solution were required to neutralize completely 13.15 mL of the malonic acid solution
magnesium hydroxide is 54.87 oxygen by mass.How many grams of oxygen are in 175 g of the compound?How many moles of oxygen is in this.
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