What is the molarity of a solution that contains 60.0 g of MgSO4 in exactly 800 mL of solution? How would we make up 500 mL of 0.2 M NaCl from a 2 M stock solution? a. 50 mL of 2 M NaCl and 450 mL of H2O b. 50 mL of 2 M NaCl and 500 ...
andtokeeptheelephantssafefromman."AndthisisexactlywhatParbatihasbeendoingformanyyears.Increasingly,theIndianelephantisangryformanyyears,illegalhuntershaveattackeditanditshomeintheglehasbeenreducedtosmallpiecesofland.Itisnowfightingback.Wheneverwildelephantsenterateagardenoravillage,Parbatiiscalledtoguidetheanimals...
A water sample contains the pollutant chlorobenzene with a concentration of 15 ppb. What is the molarity of this solution? Assume the density of the solution is 1.00 g/mL. The molar mass of chlorobenz How many grams of MgSO4 (mM= 120 g/mol) must be added to 147 grams of water t...
a人之所以是所谓的高等动物,是因为人的本性中,人性强于兽性,精神交流是美好的、是道德的 The human the reason that is the so-called higher animal, is because in human's natural disposition, human nature strong in beastly nature, the spiritual exchange is happy, is morals[translate] ...
What is a molecule containing only two atoms called? Write the formula for each of the following binary compounds of nonmetallic elements. a. dinitrogen oxide b. nitrogen dioxide c. dinitrogen tetraoxide (tetroxide) d. sulfur hexafluoride
Step-by-Step Solution:1. Definition of Epsom Salt: Epsom salt is a chemical compound known as magnesium sulfate heptahydrate. Its chemical formula is \( \text{MgSO}4 \cdot 7\text{H}2\text{O} \). It is commo
the magnesium sulfate heptahydrate into a hot bath or combine it with hot water to make a poultice. When a person soaks in the bath with the MgSO4 that has been severed from its bonds with water through the heat of the bath, he is able to absorb the free-floating salt through his ...
The scientific study of matter's characteristics and behaviour is known as chemistry.andare different from the normal vocabulary. It is a branch of natural science that examines the building blocks of matter, including the atoms, molecules, and ions that make up compounds and their composition, ...
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男孩，1岁。发热9天。查体：T39度，眼结膜充血，口唇鲜红、干裂，舌呈草莓样，皮肤有浅红色斑丘疹，右颈淋巴结蚕豆大，双肺呼吸音粗，心率130次／分，腹软，肝、脾无肿大，指、趾端少许睽状脱皮。实验室检查：血WBC19×109／L，N0.72，L0.28，Plt420×109／L，ESR120mm／h。最可能的诊断为（）。