What is a line graph

Chemistry

1 answer:

Ymorist [56]3 years ago

7 0

A line graph is a graph that shows data connected by line segments.

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Calculate the average atomic mas of an unknown element that has two naturally-occurring isotopes.

professor190 [17]

The average atomic mass if the element above is calculated by the sum of the product of the isotope abundance and its atomic mass unit. It is expressed as:

Average atomic mass = Σ xi(Mi)
Average atomic mass = (.7547 x 248.7) + (.2453 x 249.4) = 248.87

Hope this helps.

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3 years ago

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You have 100 mL of a 12M solution of HCl, and you need to dilute it to 1.5M for an experiment. How many liters will your new sol

sashaice [31]

Answer:

800.0 mL.

Explanation:

To solve this problem; we must mention the rule states the no. of millimoles of a substance before and after dilution is the same.

(MV)before dilution of HCl = (MV)after dilution of HCl

M before dilution = 12.0 M, V before dilution = 100.0 mL.

M after dilution = 1.5 M, V after dilution = ??? mL.

∵ (MV)before dilution of HCl = (MV)after dilution of HCl

∴ (12.0 M)(100.0 mL) = (1.5 M)(V after dilution of HCl)

∴ V after dilution of HCl = (12.0 M)(100.0 mL)/(1`.5 M) = 800.0 mL.

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Explain how percent yield is calculated

Alex73 [517]

Actual yield/theoretical yield x 100

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Warm air and water both tend to rise while cooler air and water sink. When different parts of the oceans are heated unevenly, th

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Does adding 1 mol of NaCl to 1 kg of water lower the vapor pressure of water to the same extent, a lesser extent, or a greater e

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Adding 1 mol of NaCl to 1 kg of water lower the vapor pressure of water to the same extent by adding 1 mol of $C_06H_{12}O_6$ to 1 kg of water.