Chemistry

Chemistry, 10.12.2019 04:31, Ryleetarver

4. write the chemical equation for the reaction that occurs when baking soda (nahco3) is
added to hci. what is the gas that is formed?

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Chemistry, 05.07.2019 11:00, nickname0097

Abaker uses sodium hydrogen carbonate (baking soda) as the leavening agent in a banana-nut quick bread. the baking soda decomposes according to two possible reactions. reaction 1: 2 nahco3(s) → na2co3(s) + h2o(l) + co2(g) reaction 2: nahco3(s) + h+(aq) → h2o(l) + co2(g) + na+(aq) calculate the volume (in ml) of co2 that forms at 170.°c and 0.900 atm per gram of nahco3 by each of the reaction processes.

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Physics, 07.07.2019 20:30, mktdonaldson

Bethany had a beaker with a small amount of baking soda. she added a few drops of pickle juice to the baking soda and observed fizzing and bubbling. based on her observation, which of these can bethany determine about the new substance formed by mixing the baking soda and pickle juice? a chemical reaction produced a gas. a chemical reaction produced a solid. no chemical reaction took place. only a physical change happened.

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Chemistry, 01.09.2019 02:30, samsmith666

1. if you have a weighing scale you can directly determine the weight of the sample used in the experiment. if none, you can estimate the weight of the sample. from the baking soda container, get the net weight of baking soda and determine how many tablespoons of baking soda are in the container from the nutrition facts (serving size in teaspoons and no. of servings). get the weight of baking soda in 1/4 teaspoon. net weight of baking soda in one container (g): no of teaspoons of baking soda in one container: weight of 1/4 tsp of baking soda: __ 2. volume of co2 produced (ml): questions: 1. write a balanced chemical equation for the chemical reaction. 2. in this experiment, which reactant is limiting? 3. which reactant is in excess? 4. what is the molar mass of nahco3? 5. how many moles of nahco3 are there in 1/4 tsp of sample? 6. how many moles of co2 should be produced from the sample? 7. how many moles of co2 are actually formed? we can predict for the volume by using the ideal gas equation pv=nrt, where p-pressure, v=volume, n=number of moles, r-ideal gas constant, 0.0821 l-atm/mol-k, t-temperature. this equation can be rearranged to get the number of moles in a specific volume of gas: n=pv/rt; where p= 1 atm, v=volume of carbon dioxide produced converted to liters; r=0.0821 l-atm/mol-k; t=298 k (room temperature) 8. calculate for the percentage error of the experiment.

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Physics, 12.09.2019 03:30, anna4060

1. if you have a weighing scale you can directly determine the weight of the sample used in the experiment. if none, you can estimate the weight of the sample. from the baking soda container, get the net weight of baking soda and determine how many tablespoons of baking soda are in the container from the nutrition facts (serving size in teaspoons and no. of servings). get the weight of baking soda in 1/4 teaspoon. net weight of baking soda in one container (g): no of teaspoons of baking soda in one container: weight of 1/4 tsp of baking soda: __ 2. volume of co2 produced (ml): questions: 1. write a balanced chemical equation for the chemical reaction. 2. in this experiment, which reactant is limiting? 3. which reactant is in excess? 4. what is the molar mass of nahco3? 5. how many moles of nahco3 are there in 1/4 tsp of sample? 6. how many moles of co2 should be produced from the sample? 7. how many moles of co2 are actually formed? we can predict for the volume by using the ideal gas equation pv=nrt, where p-pressure, v=volume, n=number of moles, r-ideal gas constant, 0.0821 l-atm/mol-k, t-temperature. this equation can be rearranged to get the number of moles in a specific volume of gas: n=pv/rt; where p= 1 atm, v=volume of carbon dioxide produced converted to liters; r=0.0821 l-atm/mol-k; t=298 k (room temperature) 8. calculate for the percentage error of the experiment.

Answers: 1

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4. write the chemical equation for the reaction that occurs when baking soda (nahco3) is
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