Inorganic Chemistry Answers

a) 200.0 g of Ca(C₂H₃O₂)₂ was found in the chemistry laboratory. 

      Calculate

          i. the molecular mass of 1 mole Ca(C₂H₃O₂) _2.

         ii.  the number of  moles of Ca(C₂H₃O₂)₂  that exists   

        iii.  the number of Ca(C₂H₃O₂)₂ molecules present

a) Calculate the pressure exerted by 0.0153 moles of CO₂ gas in a container of 1.467 L at 20.0°C.

b) What is the volume of a 15.0 g sample of propane (C₃H₈) gas at Standard Temperature Pressure?

c) Assuming that the volume of the container in question part (b) above remains constant, what would be the pressure of the propane at room temperature (25 °C)? 

1. If the pressure of 180cm3 of a sample of air is halved at constant temperature, what will be its new volume?

Write the chemical equation for hydrolysis of phen-cys-val tripeptide. Name the obtained products?

Some metal chips with a total volume of 3.29 cm3 are placed on a piece of paper and weighed. The combined mass is found to be 18.43 g, and the paper itself weighs 1.2140 g. Calculate the density of the metal to the proper number of significant figures.

in which of the following substances there is a greater number of moles?
Ca=40   Na=23    He=4     Mg=24    Li=7

A. 5g of Ca

B. 2g of Na

C. 10g of He

D. 25g of Mg

E. 15g of Li

Why does the size of a hydrode ion varies with the metal ion to which it is bound?

I take 5g of solid-liquid mixture sample,after acid digestion and make up to 50ml,from which I take 10 ml for chloride analysis,there 0.2ml AgNO3 consumed after back titration against 0.02N AgNO3 and NH4SCN.

how to calculate the chloride in the original sample? unit of result as mg/L or mg/kg?

if the molar mass of H2SO4 is 98.09 g/mol . how many grams of H2SO4 are in one mole of this substance?