A 6.53-g sample of a mixture of magnesium carbonateand calcium carbonate is treated with excesshydrochloric acid. The resulting reaction produces 1.72 Lof carbon dioxide gas at 28 °C and 743 torr pressure.(a) Write balanced chemical equations for the reactionsthat occur between hydrochloric acid and each componentof the mixture. (b) Calculate the total number ofmoles of carbon dioxide that forms from these reactions.(c) Assuming that the reactions are complete, calculatethe percentage by mass of magnesium carbonate in themixture.

14.(3pts) Among the following, determine which have similar chemical properties:Na, Mg, K, K+. Briefly explain

(i) How is HNO3 prepared commercially?(ii) Write chemical equations of the reactions involved.(iii) What concentration by mass of HNO3 is obtained?

How many grams of sodium hydrogen carbonate decompose to give 20.8 mLmL of carbon dioxide gas at STP? 2NaHCO3(s)⟶ΔNa2CO3(s)+H2O(l)+CO2(g)

What volume (in L) of O2 at STP is required to oxidize 9.6 L of NO at STP to NO2?

You are going on a day hiking trip to Yosemite and to prepare you are buying snacks at the local grocer. One of the snacks that you buy is a bag of potato chips. When you take a break during your hike and want to open a back of chips you see that the bag seems inflat and almost bursting. How can you explain this?

Assume that an exhaled breath of air consists of74.8% N2, 15.3% O2, 3.7% CO2, and 6.2% water vapor.(a) If the total pressure of the gases is 0.985 atm, calculatethe partial pressure of each component of the mixture.(b) If the volume of the exhaled gas is 455 mL andits temperature is 37 °C, calculate the number of moles ofCO2 exhaled. (c) How many grams of glucose (C6H12O6)would need to be metabolized to produce this quantity ofCO2? (The chemical reaction is the same as that for combustionof C6H12O6. )

The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of sodium azide, which produces large volumes of nitrogen gas. 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid sodium azide (NaN) into solid sodium and gaseous dinitrogen. 2. Suppose 84.0 L of dinitrogen gas are produced by this reaction, at a temperature of 19.0 °C and pressure of exactly 1 atm. Calculate the mass of sodium azide that must have reacted. Round your answer to 3 significant digits. 미미

(a) A piston at 5.7 atm contains a gas that occupies a volume of 3.5 L. What pressure would have to be placed on the piston to force the volume to adjust to 1.54 L? atm(b) A piston at 63.0°C contains a gas that occupies a volume of 2.5 L. To what temperature would the gas have to be heated to increase the volume to 4.1 L at constant pressure? °C(c) A piston at 7395 torr contains a gas that occupies a volume of 4.7 L. What pressure would have to be placed on the piston to force the volume to adjust to 1.69 L? atm

The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of sodium azide, which produces large volumes of nitrogen gas. 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid sodium azide (NaN,) into solid sodium and gaseous dinitrogen. alb Ar 2. Suppose 12.0 L of dinitrogen gas are produced by this reaction, at a temperature of 13.0 °C and pressure of exactly 1 atm. Calculate the mass of sodium azide that must have reacted. Round your answer to 3 significant digits. Explanation Check 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use | Privacy Accessibility <. lenovo dle WebEx at 3pm (dia' just before 3pm) Resp L-650-479-3208 Access Code (meeting Number): 737 129 915 Dois, 3134