Be sure to answer all parts. Calculate the number of cations and anions in each of the following compounds. Enter your answers in scientific notation. (a) 6.27 g of KBr: x 10 cations x 10 anions (b) 5.11 g of Na,SO;: x 10 cations x 10 anions (c) 6.86 g of Ca3(PO4)2: x 10 anions x 10 cations

Q: An ice freezer behind a restaurant has a freon leak, releasing 40.52 g of C, H,F,Cl into the air…

A: Given that: Leaked C2H2F3Cl = 40.52 g Mass of fluorine leaked over 6 months = ?

Q: CIO4)2-6H2O is hydrated whereas Ni(CIO4)2 is aCl contains an bond whereas O2(g) contains a bond…

A: Since you have asked a question with  multiple sub-parts, we will solve  first three sub-parts for…

Q: 58. The number of hydrogen atoms present in 25.6 g of sucrose (C12H2201), which has a molar mass of…

A: Detail mathematical calculation for determining number of atoms of hydrogen is given below

Q: Most chemistry laboratories have balances that can weigh to the nearest milligram. Would it be…

A: Given,  Molecules of C18 H38 = 5.88E+18 molecules The mass of C18 H38 is:

Q: You are drying a sample of Ba3(PO4)2. After 5 minutes of drying it weighs 1.2034 g. You continue to…

A: Answer: Percent change in mass will be the ratio of change in mass with initial mass, therefore %…

Q: A certain compound, used as a welding fuel, contains Cand H only. Burning a 1.000 g sample of it…

A:

Q: The element stramonium (Sa, average atomic mass 628.23 u) reacts with the element kingsine (Ks,…

A:

Q: (a) Ne or Xe, (b) CO2 or CS2, (c) CH4 or Cl2, (d) F2 or LiF, (e) NH3 or PH3

A: Boiling point is defined as the temperature at which the vapor pressure of the substance becomes…

Q: Determine the ΔSsurr when 9.01 g of steam→ liquid at100 ̊C ΔHvap = 40.67 kJ/mol ΔSsurr = -q/T

A: First, we need to convert the mass of steam to moles. The molar mass of water (H2O) is approximately…

Q: The molecular formula for caffeine, one of the key compounds found in coffee and tea, is C8H10N4O2.…

A:

Q: A penny has a thickness of approximately 1.0mm. If you stacked Avogadro’s number of pennies one on…

A: The thickness of a penny=1.0 mm Avogadro's number=6.022 x 1023  Avogadro’s number of pennies were…

Q: On the fictional planet of Nofactori, two commonly used mass units are related to one another by the…

A:

Q: If I start with 17.88 moles of oxygen, how many grams of CO2 can be made? 2 C3H18 + 25 O2 16 CO2 +…

A: Here we have to apply basic maths and from that we can obtain the answer Mass of 16 moles of CO2 is…

Q: An unknown compound has the following chemical formula: N_xO where x stands for a whole number.…

A:

Q: A box of clear plastic wrap for household use is polyethylene,{ CH with density = 0.910 Mg/m'. A box…

A: From area and thickness we can calculate the volume and the mass of the compound . From here we can…

Q: 7. State the chemical composition (constituent elements and number of atoms of each element) for a…

A: Given  is a molecule of citric acid whose molecular formula is C3H4OH(COOH)3.  Chemical composition…

Q: The element stramonium (Sa, average atomic mass 628.23 u) reacts with the element kingsine (Ks,…

A: Mass of one molecule of SaKs7 = ( average atomic mass of Sa )+ ( 7 X average atomic mass of Ks )…

Q: A) Chlorophyll molecules are responsible for the green pigmentation of plants. Differing chemically…

A: Given that : 1 molecule of chlorophyll X contains 4 N atoms. % nitrogen by weight = 6.26 %

Q: What is the maximum mass in grams of magnesium oxide that can be produced by the reaction of 6.8g…

A:

Q: mass o

A:

Q: I already received help with A, B, and C but I still need the explanation and solution to subpart D.…

A: 1 mole = 6.023 * 10^23 atoms = Avogadro No

Q: How many grams of oxygen (O) are present in a 6.41 g sample of potassium nitrate (KNO3)? Enter your…

A: Potassium nitrate (KNO3) is ionic compound and it contains one potassium, one nitrogen and three…

Q: Suppose that mercury forms a perfect spherical droplet with a diameter of 5.0 mm. (a) What is the…

A: Density is given by the ratio of mass of the substance to its volume. 1 mole of a substance contains…

Q: (a) Atoms are very small compared to objects on the macroscopic scale. The radius of a aluminum atom…

A:

Q: Calculate the mass of forsterite (Mg, SiO,) that contains a million (1.000 x 10°) magnesium atoms.…

A:

Q: Calculate the number of grams of sodium in 2.20 g of this sodium-containing food additive.…

A: Given, mass of sodium benzoate (NaC7H5O2) = 2.20 g mass of sodium (Na) = ? Note: molar mass of…

Q: Chemical Formulas as Formulas: Converting between Grams of a Compound and Gram of a Constituent…

A: First convert given mass in kg  into grams .

Q: The following equation represents the reaction between aluminum (Al) and bromine (Br2) to produce…

A: Aluminium reacts with bromine to form aluminium bromide. The equation for the balanced chemical…

Q: If the density of Al metal in aluminum is 2.699g/cm3, estimate the number of atoms/cm2 in a foil…

A:

Q: 7. (optional) A student found the mass of a 250-mL beaker to be 110.546 g. After touching the beaker…

A: Given : mass of beaker before touching=110.546 g  After touching = 110.547 g  Tip : one mole = 6.022…

Q: 22.00 g sample of nitric acid (HNO3) has a purity of 96.20% by mass. Calculate the following: the…

A:

Q: The nerve agent Tabun (GA) has the formula C5H11N2O2P. It is one of the lethal chemical compounds…

A: Given information: Mass of tabun = 975 mg

Q: Calculate the number of boron atoms in a 50.0g sample of tetraborane B4H10.   Be sure your answer…

A: Given that,  Weight of tetraborane, B4H10 = 50.0 g Molar mass of tetraborane, B4H10 = 53.32 g Moles…

Q: It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the…

A: Given: Mass of KF hydrate i.e. KF·nH2O = 31.43 g. And the mass of anhydrous KF after heating = 19.40…

Q: The amount of acetylsalicylic acid in a single aspirin tablet is 325 mg, yet the tablet has a mass…

A: where,P=Pressure V=VolumeR=Universal Gas constantT=Temperaturen= Moles

Q: During an exam a student broke into a sweat and 4.23x1022 water molecules erupted on their forehead.…

A: Given, Number of molecules of water = 4.23x1022 molecules Volume of 1 drop of water = 50.0…

Q: Which of the following is a molecular compound?

A: a) Nacl -sodium chloride ionic  Na+/Cl-  b) NaoH -sodium hydroxide ionic Na+ /OH -  C)Fe PO4-  Iron…

Q: Consider the reaction given below and answer the succeeding questions. Express all answers in proper…

A: We will first convert the given masses of reactant to moles of the reactant. And using the balanced…

Q: Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown…

A: Given: Percent mass of carbon = 67.31 %. Percent mass of hydrogen = 6.978 %. Percent mass of…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.