Concept explainers
(a)
Interpretation : The number of moles of oxygen required to completely react with 4 mol of
Concept Introduction : A
The moles and grams of reactant and product can be calculated with the help of mole concept.
(b)
Interpretation : We need to calculate the moles and grams of product formed and reactant required during the given chemical reaction.
Concept Introduction : A chemical reaction involves the formation of some new product molecules with the help of some reactant molecules either by bond making or bond breaking.
The moles and grams of reactant and product can be calculated with the help of mole concept.
(c)
Interpretation : We need to calculate the moles and grams of product formed and reactant required during the given chemical reaction.
Concept Introduction : A chemical reaction involves the formation of some new product molecules with the help of some reactant molecules either by bond making or bond breaking.
The moles and grams of reactant and product can be calculated with the help of mole concept.
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Basic Chemistry
- Ke lo %24 3. Ss I u b 2 4. #3 5 9. 7. 8. 6. IIO mol NO How many moles of NO are formed from 2.1 moles of N,? Use the balanced equation for the reaction of N, and O, to form NO to answer the question. (6)0 + (6)N Enter your answer in the provided box. → 2 NO(g)arrow_forwardThis is possible because of the following reactions that take place rapidly as long as reactants are available: (11.3) Equation : 51-(aq) + IO-3(aq) + 6H+(aq) ----> 3I2(aq) +3H2O(I)arrow_forward10.105 Complete and balance each of the following: (10.7) a. ZnCO3(s) + H,SO,(aq) b. Al(s) + HBr(aq)arrow_forward
- The number of moles of H2O produced in reaction of 50 mL 1.0 M HCl and 50 mL 1.0 M NaOH: (5.00×10−2) Joules released per mole of water formed: ?arrow_forward(5.2, Similar to For More Practice 5.1) What mass of NaOH (in grams) do you need to make 250.0 mL of a 1.50 M NaOH solution? O 6.67 g O 22.3 g O 44.6 g O 15.0 garrow_forward9:55 ull LTE Question 4 of 15 Submit Determine the mass in grams of C4H10 that are required to completely react to produce 8.70 mol of CO2 according to the following combustion reaction: 2 C4H10(g) + 13 O2(g) → CO2(g) + 10 H20(g) STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 0.0374 2 mol C4H10 1 mol CO2 8.70 44.01 g H20 2.18 4.35 g O2 18.02 208.00 g CH10 126 13 mol H20 10 6.022 x 1023 mol O2 58.14 g CO2 Tap here or pull up for additional resourcesarrow_forward
- 6.(0-2) Black powder was invented in China in the 9th century. It was used as an explosive with propelling properties. Today it is used in fireworks, model rocket engines, and replica black powder weapons. Black powder consists of potassium nitrate (potassium nitrate, KN03), charcoal and sulfur. A variety of chemical reactions take place when this mixture is exploded. One of these is shown below. 2KNO, +S+ 30 → K, S+N, ↑+3C0, 1 Knowing that carbon makes up 15% of the black powder, calculate the total volume of gases (under normal conditions) released when 0.1 kg of black powder explodes. Assume that only the chemical reaction given above occurs.arrow_forward1. (10.3- 1.24)/18.43 2. A penny minted after 1982 has a mass of 2.5 g Calculate total mass of three such pennies. 3. The following are placed in a beaker weighing 39.457 g: 2.689 g of NaCl, 1.26 g of sand and 5.0 g water. What is the final mass of the beaker? 4. If the beaker containing a sample of alcohol weighs 49.8767 g and the empty beaker weighs 49.214 g, what is the weight of the alcohol? 5. A flask that weighs 345.8 g is filled with 225 mL of carbon tetrachloride. The weight of the flask and carbon tetrachloride is found to be 703.55 g. From this information, calculate the density of carbon tetrachloride.arrow_forwardPart I. Complete the following chemical reactions. Do not forget to balance the reaction, the states of matter and answer any questions that are asked. In the next reaction, a gas is formed. (19 points). HCl (aq) + Mg (s) → Gas that was released: Mg (s) + O2 (g) → Cu2S (s) + O2 (g) → Gas that was released:arrow_forward
- 5.14 What is the molar concentration of chloride ion in a solution prepared by dissolving 22.0 g of calcium chloride (FW= 111.1 g/mol) to 4.0L with water?arrow_forward7:25 ◄ Search 1 Balance the following chemical equation (if necessary): 2- 3c₂²- Question 2 of 20 + Ca (C₂H3O₂)2 (aq) + Na₂CO3(aq) → Ca CO3(s) + NaC₂H₂O₂ (aq) (s) Reset 2 3 4 5 6 7 8 (1) x H₂O (g) 个 5G 85 Submit Tap here or pull up for additional resources 9 (aq) NaC₂H3O₂ Ca(C₂H3O₂) Na₂CO3 CaCO3 Oarrow_forwardGive examples of exothermic and endothermic reactions. (5 each)arrow_forward
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