How many moles are in CuSO4 5H2O? As the formula indicates, water forms a definite percentage of the weight of any hydrate. For example, the weight of a mole of CuSO4•5H2O is 250 grams (this is the molar mass of CuSO4•5H2O). A mole of CuSO4•5H2O contains 5 moles of water (which corresponds to 90 grams […]

What is a limitation of using a chemical formula such as C6H12O6 to represent a compound? What is a limitation of using a chemical formula, such as C6H12O6, to represent a compound? The chemical formula does not show how the atoms are connected to one another. How do you read a chemical compound? When naming […]

How many Dekagrams DG is 20g? Table Conversion dag g 17 = 170 18 = 180 19 = 190 20 = 200 How do you convert DG to MG? Conversion miligrams to decigrams, mg to dg. The conversion factor is 0.01; so 1 miligram = 0.01 decigrams. In other words, the value in mg divide […]

Which element is found in abundance in the human body but is not found in abundance in the earth? silicon Which element is least abundant? Thulium Why is copper so expensive? Copper is a Valuable Metal This metal is in high demand because it can be used for various purposes. Due to its amazing physical […]

What does a white blood cell count of 4.8 mean? White blood cells fight infections. They are measured in thousands per cubic milliliter (K/uL) of blood. A WBC of 4.8 K/uL is 4,800 cells. ▶ Red blood cell (RBC) count. Red blood cells carry oxygen to and remove waste products from the body’s tissues. Which […]

When an isotope emits an alpha particle its atomic number? Alpha decay When a nucleus emits an alpha particle, these changes happen: the mass number decreases by 4. the atomic number decreases by 2. the nuclear charge decreases by 2. What element does thorium become if it emits an alpha particle? element helium Why was […]

What type of hormone is DHEA? DHEA is an endogenous steroid hormone, produced by the adrenal glands, gonads, and brain. Its role is not fully understood, but it plays an important part in the synthensizing estrogen and androgen. The World Anti-Doping Agency classes DHEA as a banned substance in sports. What type of molecule is […]

What makes vinegar acidic? Through a two-part fermentation process, yeast and bacteria are used to turn the sugar into ethanol (ethyl alcohol), which is then processed into acetic acid. It is the acetic acid content in vinegar that makes it acidic. What is vinegar made of? Vinegar is essentially a dilute solution of acetic (ethanoic) […]

What to do if you have no idea what to do? What to Do When You Have No Idea What to Do: 15 of the Best Ideas Stop fighting it. Just accept you are having a fuzzy, confused, indecisive, non-action oriented day. Talk a walk. Or a run. Do mindless tasks. Learn something new. Borrow […]

How do you calculate the RF value? The Rf value of a compound is equal to the distance traveled by the compound divided by the distance traveled by the solvent front (both measured from the origin). What is the RF value? RF value (in chromatography) The distance travelled by a given component divided by the […]