The quadratic formula is used to solve for x in equations taking the form of a quadratic equation, ax² + bx + c = 0. -b ± VB – 4ac quadratic formula: x = 2a Solve for x in the following expression using the quadratic formula. 2x + 21x – 5.3 = 0 Use at least three significant figures in each answer. x = and x =

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A: We can solve this problem by converting all three volumes in same unit litter.

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A:

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Q: Near room temperature, the density of ethanol can be expressed using the equation d = (-8.99 x 10 g…

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A: The calculation is given below:

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A: This is a simple addition , multiplication and division.

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A: It is known that the density is the mass per unit of volume. Density = MassVolume d = mV

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A: Given that , The volume of blood sample ,             = 2uL             =2 x 10-6 L

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A: We know,Mass = Density x Volume

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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.