1 . Estimate the molecular mass/formula fat for: KHSO3
2 . Just how many of each type of atom are present in 0. 667 mol of [CrCl2(NH3)4]Cl three or more. Calculate the molecular formulation for the compound which contains 40. 92% C, 4. 58% They would, 54. 50 percent O, and has a molecular mass of 176 u.
4. The moment 1 . 019 g of potassium responds with O2, it forms 1 . 860 g of your rather odd compound. Find the scientific formula of this compound, and explain for what reason it is odd. 5. How many grms of BaSO4 (s) happen to be formed when an excess of BaCl2 (aq) is added to 635 mL of 0. 314 M Na2SO4 (aq)?
BaCl2 (aq) + Na2SO4 (aq) в†’ BaSO4 (s) + 2 NaCl (aq)
6th. Determine the empirical and molecular formulations for:
a. 75. 69% C; almost 8. 80% H; 15. 51% O; MW = 206
b. 59. 0% C; 7. 1% H; twenty six. 2% O; 7. 7% N; MW = 180
1 . Publish (a) complete-formula equation, (b) ionic equation, (c) net ionic equation for this neutralization reaction: KHSO4 (aq) & NaOH (aq) в†’?
installment payments on your In each of the following cases, predict whether a reaction will certainly occur, and, if therefore , write the net ionic formula for the response:
a. ZnSO4 (aq) & BaS (aq) в†’?
m. NaHCO3 (aq) + Ca(OH)2 (aq) в†’?
3. Give an oxidation number with each atom in:
b. HAsO42c. NaMnO4
some. Identify the reducing agent and the oxidizing agent in the following effect: MnO4- + 5 Fe2+ + almost eight H+ в†’ Mn2+ + 5 Fe3+ + four H2O
1 ) Balance the equation:
FeS (s) + HCl (aq) в†’ FeCl2 (aq) + H2S (g)
Given 13. 2 g FeS and 10. two g HCl, determine: (a) how much H2S is formed, (b) how much extra reactant is definitely left.
1 . Assign the oxidation number to each atom in:
2 . 100. 00 g of sodium chloride is blended in enough water to arrange 10. 0 L of solution. Precisely what is the molarity of the solution?
3. Determine the empirical formula pertaining to the chemical substance that contains forty. 92% C, 4. 58% H, and 54. 50 percent O.
4. Write the (a) complete-formula equation, (b) ionic equation, and (c) net ionic formula for this neutralization reaction: HNO3 (aq) & NaOH (aq) в†’?
five. How many grams of BaSO4 (s) are...