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gayaneshka [121]
3 years ago
14

A student needs to determine the volume occupied by a gas in a 125 mL flask using the experimental setup described in the proced

ure. The student measures the volume of the flask to be 159 mL to the top of the flask. The student measures the volume of the flask with a stopper in it to be 142 mL. The student performs the experiment by reacting the strip of magnesium with 5 mL of HCl solution. What is the volume of the flask occupied by the hydrogen gas?
Chemistry
1 answer:
Yuki888 [10]3 years ago
6 0

Answer:

It would appear that the H2 gas is collected in a stoppered flask. Therefore, the volume of the gas is 138 mL minus the 5 mL occupied by the HCl, or 133 mL.

Explanation:

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Explanation:

The reaction given is;

TiCl4 + H2O --> TiO2 + HCl

The reaction is not balanced, upon balancing it is given as;

TiCl4 + 2H2O → TiO2 + 4HCl  

a. How many moles of H2O are needed to react with 6.50 moles of TiCl4?

From the reaction;

1 mol of TiCl4 requires 2 mol of H2O

6.50 mol of TiCl4 would require x mol of H2O

1 = 2

6.5 = x

x = 6.5 * 2 / 1 = 13.0 mol

b. How many moles of HCl are formed when 8.44 moles of TiCl4 react?

From the equation of the reaction;

1 mol of TiCl4 reacts to form 4 mol of HCl

8.44 mol of TiCl4 reacts to form x mol of HCl

1 = 4

8.44 = x

x = 8.44 * 4 / 1 = 33.76 mol

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When an object is pushed by a force and moves in the direction of the force, work is done on the object. The amount of work equa
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Explanation:

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Answer:

The Prandtl number for this example is 14,553.

Explanation:

The Prandlt number is defined as:

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To compute the Prandlt number for this case, is best if we use the same units in every term of the formula.

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Now that we have coherent units, we can calculate Pr

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Answer:

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Explanation:

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Answer:

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