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  • Waiting for answer What mass of urea, a nonionic compound, must be added to 20...

    You must add 3.1 g of urea. We use the boiling point elevation expression ##ΔT_b = iK_bm## where ##ΔT_b## = change in boiling point; ##i## is the van’t Hoff factor; ##K_b## is the molal boiling point elevation constant for the ; and ##m## is the of the solution. Step 1. Determine the ##i## va...

  • Waiting for answer What happens to a chromosome during cell division?

    It depends on the phase of cell cycle The various stages of chromosomes during the cell division are :- 1. Interphase - During interphase of cell cycle , chromosomes are not visible...

  • Waiting for answer What is the oxidation number of manganese in MnO4-, Mn2O3, a...

    Here's what you have here. I'll show you how to find manganese's oxidation state in the first two , and leave the last one to you as practice. In each of those three cases, you can...

  • Waiting for answer What body cavity contains the brain? Is it in a body cavity?

    The cranial cavity The brain sits in the intracranial space or cranial cavity (space within the skull). It is cushioned from the bone by three membranes (the meninges) and cerebrospi...

  • Waiting for answer What is convection, conduction and radiation and how do thes...

    Convection is when hot gas or liquid rises over its colder part due to the density difference. Conduction is when molecules transfer heat molecule by molecule. Radiation is when heat or energy travels through light or another energy form....

  • Waiting for answer Which liquid, methanol or ethanol, has the larger vapor pres...

    Methanol has the larger at room temperature because it has a lower molecular weight when compared with ethanol, which implies it has weaker . Both methanol (##"CH"_3"OH"##) and ethanol (##"CH"_3"CH"_2"OH"##) have the capacity to form because of the ##"-OH"## group, so from this standpoint there i...

  • Waiting for answer Explain orbital notation?

    Orbital notation is a way of writing an to provide more specific information about the electrons in an atom of an element. Orbital notation can be used to determine the of an electron. Here is a video which explains how to write orbital notation for the element krypton. Hope this helps!

  • Waiting for answer How are plasmodesmata related to the symplast?

    Plasmodestama are cytoplasmic connections between adjacent plant cells. The symplast pathway of transporting materials in plants happens through the living components ie the cytoplasm and it's contents. Plasmodesmata helps in keeping this pathway open between plant cells for transportaion.

  • Waiting for answer How are buffer solutions used?

    Buffer solutions are used to keep the nearly constant, especially in biochemical and commercial applications. Biochemical Applications Buffers are used to run biochemical assays...

  • Waiting for answer Who wrote The Wealth of Nations in 1776?

    Adam Smith Smith was a Scottish economist. His book The Wealth of Nations is used by right wing economists to justify free market economics.

  • Waiting for answer What Spanish military leader overthrew the empire of the Azt...

    Hernán Cortés de Monroy y Pizarro, conquered Mexico and overthrew the Aztec Empire between 1518-1521

  • Waiting for answer How can negative externalities be internalized?

    There are 2 ways to internalized an , the first one is to define better property rights, and the second entrepreneurial creativity. In thecase of mal-defined property rights, we have what is called the tragedy of the commons, when people using a resource resource impose costs on another, for exampl...

  • Waiting for answer The cytoplasm in a cell carries out a function similar to a...

    . Which is blood since blood contains vital nutrients for the human body to carry out necessary function. Just like cytoplasm in a cell.

  • Waiting for answer What are the building blocks of nucleic acids?

    monomers. Nucleic acids are biopolymers made up of monomers called nucleotides. Each nucleotide monomer consists of : 1) a 5 carbon sugar 2) a nitrogenous base 3) a phosphate group...

  • Waiting for answer What is the physical significance of the Planck's constant?

    describes the behaviour of particles and waves on the atomic scale. The idea behind its dicovery, that energy can be expressed in discrete units, or quantized, proved fundamental for the development of quantum mechanics. A glass of water, for example, contains a staggering amount of water molecul...

  • Waiting for answer How does the value of an equilibrium constant relate to the...

    The Equilibrium constant is directly proportional to the products of a reaction and inversely proportional to the reactants. I say this because as you know the Equilibrium Constant is concentration of the products raised to the power of number of moles divide by the concentration of the reactants r...

  • Waiting for answer What is compression?

    It is the process with which petroleum is made. The pressure of the earth causes age old animal and plant remains to be converted into petroleum. This is known as compression.

  • Waiting for answer What is an example for catharsis?

    Have you ever seen a good film with a group of friends and, after the show, felt as you could not go home and sleep unless you talked it over and thoroughly dissected the subject among the group? This is "catharsis"...

  • Waiting for answer What does the term dual "nature of light" mean?

    The dual nature of light means that, in some experiments, light behaves as a wave. In other experiments, light behaves as a particle. In 1801, Thomas Young shined light between two adjacent slits. The light waves interfered with each other and formed an alternating pattern of light and dark bands;...

  • Waiting for answer What is the atomic number of iron?

    26 On the , or number of protons, is the whole number written above the element symbol. The symbol for iron is Fe and the atomic number is 26.

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