The alum we produced is expected to be the dodecahydrate (AlK(SO4)2•12 H2O). What is the percent water of this hydrate? What mass of the alum produced do you predict to be water? How might you experimentally determine if this was the hydrate formed?

Q: The active ingredient in Antabuse, a drug used for the treatment of chronic alcoholism, is…

A: Starting with the production of H2SO4 from the SO2 and H2O2 the chemical equation is shown below.…

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: The cations given are Fe3+ and Pb4+ The anions given are CrO42– and PO43–

Q: Consider the balanced reaction of magnesium and oxygen.   2Mg+O2⟶2MgO2Mg+OX2⟶2MgO   What mass, in…

A: The balanced reaction taking place is given as, => 2 Mg + O2 → 2 MgO Given: Mass of Mg taken =…

Q: Change 1.25 x 10^25 atoms of yttrium into moles of yttrium

A:

Q: How many moles of aluminum are needed to make 6 moles of molecular hydrogen ? Given the reaction : 2…

A:

Q: How many grams of beryllium are needed to produce 36.0 g of hydrogen? (Assume an excess of water.)…

A: Given reaction: Be(s) + 2H2O(l) ....> Be(OH)2(aq) + H2(g)  Mass of hydrogen(H2) gas is produced =…

Q: Methylhydrazine, N2H3CH31l2, is used with the oxidizer dinitrogen tetroxide, N2O41l2, to power the…

A: Methylhydrazine, N2H3CH3 (l), is reacted with dinitrogen tetroxide, N2O4(l), to produce N2, CO2, and…

Q: Chemical formula for Iron (III) Hydrogen Phosphate

A: Chemical formulas are used to represent a chemical compound. They involved symbols of atoms from…

Q: Predict the products of the reaction below. That is, complete the right-hand side of the chemical…

A:

Q: Barium metel was quantitatively precipitaded from 1.52g sample of BaCl2+2H2O. The mass of the barium…

A: Mass percentage = (mass of solute / mass of solution) x 100%

Q: Would it be possible to determine the percentage of oxygen in NaCIO3?

A: The given compound is = NaCIO3 The percent of oxygen in this compound is =?

Q: Write a balanced chemical equation based on the following description: the reaction of gaseous C₅H₄…

A: The reactants given are  1) gaseous C5H4 i.e C5H4 (g) 2) Oxygen gas i.e O2 (g) And the products…

Q: Select the best possible products for the given reaction. Don't worry about balancing. NO₂-

A: Given : formula of compound. And periodic table.  This ia a dissociation reaction.

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: Ionic compounds are made up of anion and cations And hence any ionic compound will have at least 1…

Q: What is the mass percent of P in H3PO4? Show your calculations please.

A: Percent mass of an element in a compound can be calculated by using the following formula:

Q: The density of solid Cr is 7.15 g/cm3. How many atoms are present per cubic centemeter of Cr?

A: Mass = Volume x density Number of moles = Mass/molar mass Number of molecules = 6.0224 x 1023 x…

Q: What is the mass percentage of C in codeine, C₁₈H₂₁NO₃? Provide an answer to two decimal places.

A:

Q: What mass, in grams, of MgO can be produced

A: Number of moles = mass/molar mass  First we find out the limiting reactant and then after applying…

Q: Potassium oxide (K,O) is a basic oxide. It reacts and dissolves in water, forming an alkaline…

A:

Q: Use the solubility rules for ionic compounds to explain why milk of magnesia, which contains Mg(OH)…

A: Suspension is the one in which solid particles are dispersed in liquids. It is a heterogeneous…

Q: Consider the balanced reaction of magnesium and oxygen.   2Mg+O2⟶2MgO2Mg+O2⟶2MgO What mass, in…

A: Number of moles of Mg and O2 are calculated as follows: No. of moles of Mg=massmolar mass=1.41…

Q: Calculate the mass of tetraborane that contains a billion (1.0x10^9) boron atoms.

A: Given :- number of boron atoms = 1.0 × 109 atoms  To be calculated :- mass of tetraborane (in grams)

Q: Fill in the blanks.

A: The balanced chemical equation for this reaction is: NH3 + Br2 + H2O → NH4Br + HOBrNH3 is…

Q: Given the following reaction: 2 Al + 2 KOH + 4 H2SO4 + 22 H20 --> 3 H2 + 2KAI(SO)2•12H20 If you…

A: Aluminium in presence of KOH and sulfuric acid produces an alum.  Here Al is the limiting reagent…

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: Ionic compound:Ionic compound composed of cation which is positively charged (+charge) and an anion…

Q: Complete and write the reactions below: rite the chemical equations for the 1) Potassium + Lithium…

A: The question involves various chemical reactions. we have to complete the reaction and balance it.…

Q: Determine the molecular weight of Ca(NO3),

A: The given molecule is Ca(NO3)2.   The molecular weight of each atom in the given molecule is, Ca =…

Q: Calculate the mass of vanadium(V) oxide (V2O5) that contains a trillion (1.00*10^12) vanadium atoms.

A:

Q: Consider the balanced reaction of magnesium and oxygen.   2Mg+O2⟶2MgO2Mg+OX2⟶2MgO   What mass, in…

A: Mass of Mg = 1.92 g Mass of O2 = 2.66 g Mass of MgO = ?

Q: what mass in grams of H2O can be produced from 9.00 moles of O2?

A: In the given question we have to calculate the mass in gram of H2O. the balanced equation will be  2…

Q: 3 g of a hydrated metal chromate is heated only 1.479 g of anhydrous metal chromate remains.  What…

A: Some salts are found in their hydrated form. In hydrated form, water is coordinated with the salts.…

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: Ionic compound :  Ionic compound are overall neutral and they are form by held together by…

Q: If a particular ore contains 55.0 %% calcium phosphate, what minimum mass of the ore must be…

A: Mass percentage of calcium phosphate in ore = 55.0 % Chemical formula of calcium phosphate =…

Q: Calculate the formula weight of Mn(ClO4)2 • 4H2O.

A: Atomic weights of all atoms present in Mn(ClO4)2•4H2O is given,

Q: Starting with the following equation, Fe₃O₄(s) + CO(g) → Fe(l) + CO₂(g) calculate the mass in grams…

A: The reaction taking place is given as, => Fe3O4 (s) + CO (g) → Fe (l) + CO2 (g) Given: Mass of Fe…

Q: Complete and balance the chemical equation. chemical equation: K+ H,0 → Name the ionic product of…

A: In the  reaction between potassium and water we get the product's as potassium hydroxide and the…

Q: Give the net ionic equation for the following: Magnesium hydroxide + lead (iii) bromide ——>

A: Net Ionic equation

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.