The reaction X Y is second-order and has a rate constant of 3.800 M-'s-. If one starts with a 4.500 M concentration of X, how many seconds will it take for the concentration of X to become 0.850 M?

Q: Direction: Convert the following numbers to scientific notation. 1. 0.0000000000007365 2.…

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Q: Which piece of laboratory equipment can make the most precise measurements? Top-loading balance (in…

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Q: Correct any entries in the table that are wrong.Quantity              Significant Figures (a) 24…

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Q: chemist has a block of copper metal (density is 8.96 g/ mL). The block weighs 2.30 g. What is the…

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Q: The number 31.00065 rounded to 4 significant figures is

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Q: 1/0.299=0.00495 * 440 + 1/b

A:

Q: To the correct number of significant figures calculate log(4.399x104).

A: Significant figures are the digits of a number that have meaning in terms of accuracy or precision.

Q: How many mL are in 3.0 tsp? 1tsp=4.93mL. Answer with the appropriate number of significant figures.

A: The volume of 3.0 tsp is calculated as shown below. The volume of 3.0 tsp is 14.79 mL.

Q: Carry out the following mathematical operations and answer the questions that follow. 33.916 x 95.7…

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Q: Write each of the following numbers to 3 significant figures in exponential or scientific notation.…

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: Solve and write answer in scientific notation with significant digits: 1. 70,000.0 *…

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Q: how many millimeters are in 4.3 kilometers?

A: Kilometer is the measure of distances or we can say length. In chemistry or in physics the SI unit…

Q: Draw a graph of the following mass and volume data. X-axis=?, y-axis=? Mass (g) V (mL) 5.7 4.0 11.6…

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Q: ansition between liquid and gas, line f depicts the transition between solid and liquid

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Q: Convert 999  mm3/s to km3/day. (Integral or decimal)

A: Here we are required to convert the following unit  mm3/s to km3/day.

Q: Report the followlng volume measurement to the correct number of significant figur Meniscus 40 30…

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Q: convert 2.87kg to grams. Use only the metric system

A: Convert 2.87kg to grams.

Q: Express 6.0 x 10 m using a prefix to replace the power of ten?

A:

Q: Multiply or divide the following measurements. g 502.42 g 0.87 mL = %3D mL mol 0.934 L X 3.40 L…

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.