Other Chemistry Answers

0.35 g FeSO4 is dissolved to give 100 mL stock solution. 25 mL of this stock solution in turn is diluted to 250 mL. Calculate the [Fe2+] (mol/L) in the final solution.

Calculate the volume of a 0.500M NaOH solution needed to neutralize (titrate to the endpoint):

a)10.0 mL 0.300M HCl


b)10.0 mL 0.200M H2SO4


c) 4.08 g KHP (molar mass 204 g/mol

35.2 mL 1.66M KCl is added to 16.7 mL 0.892M CaCl2 What is the chloride ion, Cl– Molarity (mol/L) in the mixture? Hint: calculate the number of moles in each of the two solutions mixed. The total final volume is the sum of the two volumes mixed.

a metallic chloride of a trilavent metal M reacts with NH4OH. what will be the formula

Calculate the H2C2O4 (aq) molarity if 10.00 ml of its solution reacts completely with 31.5 ml of a 0.0158 M KMnO4

how the flame spectrometer does work?

Carbon dioxide, CO2 is added to a tank containing nitrogen at 2.00 atmospheres and oxygen at 1.00 atmosphere until the total pressure within the tank is 4.6 atmosphere what is the partial pressure of the CO2?

A student weighed out exactly 7.90 grams of potassium permanganate (KMnO4), in a beaker. she has how many moles of potassium permanganate?

When 3.62 g of a compound containing carbon, hydrogen, and oxygen were burned completely in air, 5.19 g of CO2 and 2.83 g of H2O were produced. What is the empirical formula of the compound?

At equilibrium for the reaction H2 (g) + Br2 (g) is revesible arrow 2HBr (g) in a 10 litre vessel was found to contain 2.5 X 10 to the power -3 mole of H2 , 0.150 mole of HBr and 2.8 x 10 to the power-3 mole of BR2. What is the value of k at this temperature?