Calculate the equivalent weight for HI, NH4OH, and Ca3(PO4)2 respectively? (Atomic weight: H = 1, I = 126, N = 14, O = 16, Ca = 40, P = 31).

Q: You analyzed 2.475 g of a mixture of NaCl, SiO2, and CaCO3. You isolate 0.825 g NaCl, 0.825 g of…

A: Given data : Mass of the mixture = 2.475 gms % of NaCl = 35% % of CaCO3 = 45% % of SiO2 = 20% So,…

Q: Anhydrous CuSO4 is converted to CuSO4・xH2O to absorb water from certain liquids. What is the value…

A: We have to predict the value of x.

Q: When 6.65 g of the hydrate NiSO4 • xH2O was heated in a vacuum, the water was driven off and 3.67 g…

A: NiSO4 . xH2O is a hydrated form of nickel Sulphate and the water involved is called water of…

Q: Consider this chemical reaction: 2 MnI2(s) + 13 F2(g) 2 MNF3(s) + 4 IFs(1) If 83.5 kilograms of…

A:

Q: What are the basic units-single atoms, molecules, or for- mula units-that compose each substance?…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Constants I Peri- A compound of molar mass 213 g/mol contains only carbon, hydrogen, iodine, and…

A: In the given question we have to calculate the molecular formula of the compound by the given data,…

Q: Calculate the number of atoms of silicon (Si) in 415 cm3of the colorless gas disilane at 0°C and…

A: GIVEN: Density of disilane =  0.00278 g cm-3 Volume of disilane = V=415 cm3   The molecular formula…

Q: How many atoms of O are found in 1.00 x 10 2 g of K 2Cr 2O 7 ?

A: Number of atoms of Oxygen present in the given compound can be calculated as -

Q: Write the empirical formula corresponding to each of the following molecular formulas: (a) Al;Bre;…

A: Empirical formula gives simple whole number ratio of atoms of various elements present in one…

Q: You analyzed 2.475 g of a mixture of NaCl, SiO2, and CaCO3. You isolate 0.825 g NaCl, 0.825 g of…

A: we were told that the original mixture contained 35% NaCl, 45% CaCO3, and 20% SiO2.

Q: The initial abundances of O, Mg, and Si atoms are respectively in the ratio 21:1:1. And O, Mg, and…

A: The initial abundances are given in the ratio: O              21 Mg           1 Si             1

Q: Provide the chemical formula (including brackets where appropriate) or systematic name for the…

A: Given : Number of molecules of molecular chlorine = 5 x 1023

Q: In the ammonia (NH) molecule of the figure, the three hydrogen (H) atoms form an equilateral…

A: You can find the center of mass of the 3 Hs first, then find the center of mass between that point…

Q: Use an online MSDS source for this question. What is the formula weight of alum, KAl(SO4)2•12 H2O?…

A: The molecular formula of the compound given is KAl(SO4)2•12H2O.

Q: As a technician in a large pharmaceutical research firm, you need to produce 300. mL of a phosphate…

A:

Q: Write a balanced equation for the following by inserting the correct coefficients (if a coefficient…

A:

Q: Anhydrous CuSO4 is converted to CuSO4・xH2O to absorb water from certain liquids. What is the value…

A:

Q: The technique of mass spectrometry cannot... O be used in conjunction with an HPLC. be used in the…

A: Mass spectroscopy is an analytical technique used to measure the mass (m) to charge (z) ratio (m/z)…

Q: 2) What is the mass of 5.13 moles of NazCr207?

A: Given :- number of moles of Na2Cr2O7 = 5.13 mol  To calculate : Mass of Na2Cr2O7

Q: Calculate the number of atoms of hydrogen (H) in 323 cm3 of the colorless gas ethylene at 0 °C and…

A: 1 mole of C2H4 (ethylene) has 2 moles of carbon and 4 moles of hydrogen in it.1 mole of any…

Q: 04: (a) Nitrogen occurs naturally as 2 isotopes: N-14 and N-15 O Nitrogen has an atomic number of 7.…

A: Question is related to Inorganic chemistry topic.

Q: 7. Balance the following equations: a) For the synthesis of urea, a common fertilizer CO2(g) +…

A: Balancing of reactions

Q: 7. Isotopes, (a) Argon has three naturally occurring isotopes, 36Ar, 38Ar, and 40Ar. What is the…

A:

Q: Part B Magnesium makes up 2.10 % by mass of the Earth's crust. How many grams of magnesium are…

A: Mass percent :-  The mass of a component in grams present in 100 grams mixture of all components is…

Q: (a) How many elements are found in period 4 in the periodic table? (b) How many elements are found…

A: a) The fourth period contains 18 elements beginning with potassium and ending with krypton.

Q: You analyzed 2.475 g of a mixture of NaCl, SiO2, and CaCO3. You isolate 0.825 g NaCl, 0.825 g of…

A:

Q: Phosphorus trichloride is important in the manufacture of insecticides, fuel additives, and flame…

A: The solutions are given below

Q: Anhydrous CuSO4 is converted to CuSO4 · XH20 to absorb water from certain liquids. What is the value…

A:

Q: 2.43 g magnesium was completely burnt in oxygen to give magnesium oxide. 2 Mg(s) + O2(g) → 2 MgO(s)…

A: Answer: This question is based on the stoichiometric calculation from the chemical equation.

Q: Potassium ferric alum has the formula: KFe(SO,)2 .XH2O. A sample of 1.26 g of this alum was heated…

A: Answer

Q: How many grams of aluminum carbonate can one produce from 1.00 mole of sodium carbonate? 2AlCl3…

A: We have to calculate the mass ( in grams)of aluminum carbonate can one produce from 1.00 mole of…

Q: Before the use of systematic names, many compounds hadcommon names. Give the systematic name for…

A: (a) The anion sulfate is a polyatomic anion and the charge on the sulfate ion is -2. Therefore, to…

Q: Find the total number of atoms in a sample of cocaine hydrochloride, C17 H22 CINO4, of mass 22.5 mg…

A: Since we know that  1.0 mol of any substance = 6.022 × 1023 atoms  So first we calculate the number…

Q: When 6.65 g of hydrate NiSO4•XH₂O was heated and the water was driven off and 3.67 g of anhydrous…

A:

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.