Inorganic Chemistry Answers

studies and researches about anti-fungal property of guyabano

An analysis of sodium dichromate gives the following mass percentages: 17.5% Na, 39.7% Cr, and 42.8% O. What is the empirical formula of the compound?

A sample of compound weighing 83.5 g contains 33.4 g of sulfur. The rest is of oxygen. What is the empirical formula?

Caculate the pH & pOH of a soulition containing:
0.03 moles of HCl
1.2 moles of NaOH
5.3 x 10-4 moles of HNO3
3.3 x 10-3 moles of KOH
8 x 10-2 grams of HCl

in sulphur estimation 0.157 gm of organic compound gave 0.4813gm of BaSO4. Calculate the % of S

NO2 dimerizes to from N2O4. A sample of the mixture has an average RMM of 60. Find the percentage of dimer in the mixture.

what is the possible maximum ionization(ion intensity) in gas?

If 0.300 mol of lead combines with 0.300 mol of sulfur, what is the empirical formula of the lead sulfide product?

0.5 L of a 0.15 M HCI solution is titrated with a solution of 0.30M Naoh?
A) what is the Ph before addition of Naoh?
B) what is the total Number of moles of acid?
C) what is the Ph after addition of 125 ML of Naoh solution ?
D) what Volume of the Naoh solution is required to reach the equivalence point ?
E) what is the Ph at the equivalence point ?
F) What is the Ph after addition of 375ml (total) of Naoh solution?

3. Suppose you pour 20 mL of silver nitrate into a beaker with 80 mL of water (H20) in it. You also pour 20 mL of silver nitrate into a separate beaker, but this one contains 80 mL of salt water (NaCl). Is the percent strength of the silver nitrate the same in both of these solutions