How many grams of manganese(II) hydroxide contain 2.80 grams of Mn2+?

Q: determine the composition of  the following compounds: MgCl2,SiO2,(NH4)2S?

A:

Q: 3. What mass of ZnC12 can be prepared from the reaction of 3.27 grams of zinc with 3.30 grams of…

A: Mass of zinc = 3.27 g mass of HCl  = 3.30 g The reaction between Zn and HCl is, Zn + 2 HCl → ZnCl2 +…

Q: For the reaction of N2 + 3H2 -→ 2NH3 , how many grams of Hydrogen are produced from 17.2 moles of…

A:

Q: 100. grams of C5H12 are burned during an experiment, How many moles of CO2 are released?

A:

Q: For the reaction CaI2+2AgNO3⟶2AgI+Ca(NO3)2 how many grams of silver iodide, AgI, are produced from…

A: Chemical reaction :-      CaI2  +  2AgNO3  ---->  2AgI  +  Ca (NO3)2 reaction is balanced given…

Q: How many molecules are there in 16.3 mil of CO2?

A:

Q: 4) What mass of ZnCl2 can be prepared from the reaction of 3.27 grams of zinc with 3.30 grams of…

A: 4) Given that: Mass of zinc = 3.27 g Mass of HCl = 3.30 g Mass of ZnCl2 = ?

Q: How many grams of carbon tetrabromide contain 2.48 grams of Br ?

A: grams of carbon tetrabromide contain 2.48 grams of Br  will be found like this:

Q: 2. Calculate the mass of hydrogen formed when 25 grams of aluminum reacts with excess hydrochloric…

A:

Q: Balance the following chemical reaction equation: ___ Ca3P2 + ___ H2O → ___ Ca(OH)2 + ___ PH3

A: The reaction taking place is given as, => Ca3P2 + H2O --------> Ca(OH)2 + PH3

Q: According to the following reaction, how many grams of oxygen gas are required for the complete…

A: Given that : Mass of ammonia = 25.2 g The molar mass of ammonia is 17.03 g/mol So, Number of…

Q: How many grams of oxygen are present in 69.1 g of CO2?

A: We have to determine how many grams of oxygen are present in 69.1 g of CO2.

Q: How many grams of Pb2+ are presented in 2.65 grams of lead (II) nitrate?  How many grams of lead…

A: a) Pb2+ are presented in 2.65 grams of lead (II) nitrate = 1.66 gram b) grams of lead (II) nitrate…

Q: Phosphorus may be determined analytically by precipitating it as MgNH4PO4 followed by ignition to…

A: Given data: Mass of sample of phosphate rock = 9.346 gms It contains 71.24% of Ca3(PO4)2 So, mass of…

Q: According to the following reaction, how many grams of oxygen gas are required for the complete…

A:

Q: What mass of phosphorus is necessary to react with 3.72 g of iodine in the following reaction?…

A:

Q: How many grams of oxygen are required to combine with 2.4 g of carbon in CH3COOH ?

A: Number of moles = mass/molar mass  CH3COOH contains 2 mol O and 2 mol C

Q: How many grams of sulfur would be needed to obtain 85.4 g of CS2 ?

A:

Q: A: What is the correct chemical formula when Co4+ combines with S2- ?  B:  How many ATOMS of OXYGEN…

A: A: What is the correct chemical formula when Co4+ combines with S2-?

Q: What mass of water is contained in a 5.398_g sample of Na22CO3.10H2O?

A: The mass of the sample is 5.398 g.The molar mass of Na2CO3.10H2O is 286 g/mol.The mass of water in…

Q: How many grams of Co3+ are present in 1.88 grams of cobalt(III) phosphate?

A:

Q: How many grams of O2 are required to produce 73.78 grams of ZnO? 2 Zn + 102→ 2 ZnO

A:

Q: 1. How many GRAMS of manganese(II) are present in 1.89 grams of manganese(II) hydroxide, Mn(OH)2 ?…

A: Number of moles = mass/molar mass  Molar mass of Mn(OH)2 = 88.95 g/mol  Molar mass of Mn(II) =…

Q: 3. What mass of ZNC12 can be prepared from the reaction of 3.27 grams of zinc with 3.30 grams of…

A: 3) Given that : Mass of zinc = 3.27 g Mass of HCl = 3.30 g Mass of ZnCl2 = ?

Q: How many moles of boron will be produced if 400.0 g of B2O3 react completely with excess magnesium?…

A: In the given equation: 3 Mg(k) + B2O3(k) ------> 2B(k) + 3 MgO(k) Given that 400 g of B2O3…

Q: 2 Fe,0, 4 Fe + 3 0, (is the reaction balanced?) 2. How many moles of oxygen would be produced from…

A: Please find the attachment.

Q: How many moles of iron are needed to make 17g of Fe2O3? 4Fe +302 2FE2O3

A:

Q: Copper is obtained from ores containing the following minerals: azurite, Cu3(CO3)2(OH)2; chalcocite,…

A:

Q: If 21.6g of carbon dioxide is produced in the reaction below, what mass of water is also produced?…

A: Firstly find the moles of CO2 , then according to mol ratio the moles of water can be found out.

Q: molar mass

A:

Q: Silver sulfide, Ag2S, also called argentite, is an economically important silver ore. If a silver…

A: From the molar masses, we can estimate the amount of silver produced per day from Argentine (Ag2S)…

Q: Cl2(g) + Al(s) AlCl3(s) 70.90 g/mol 26.98 g/mol 133.33 g/mol a. Calculate the theoretical yield of…

A: Given :         2Al (s) + 3Cl2 (g) ->  2AlCl3 (s) 1 mol      3 mol           2 mol Molar masses:…

Q: 2KClO3=2KCl+3O 2 25.0 g of KClO 3 decompose, what mass of wil O 2 form?

A: 2KClO3 ----> 2KCl + 3O2 Given,  25 g of 2KClO3 is decomposed to give O2.

Q: What is the molar mass of Mg3(PO4)2, a substance formerly used in medicine as an antacid?

A: Molar mass of Mg3(PO4)2 is calculated as,

Q: If you place 7.05 g of aluminum in a beaker with 185 mL of 1.35 M KOH, what mass of KAl(OH)4 is…

A: If 7.05 g of aluminum in a beaker is treated with 185 mL of 1.35 M KOH, the mass of KAl(OH)4 that is…

Q: If 7.09 g of gold are reacted with 1.05 g sodium cyanide, how many grams of NaAu(CN)2 could form in…

A: To  solve this problem first we calculate the number of mole of given compound Au and NaCN  Then…

Q: A 52-kg woman has 7.2 x 10 mol of hemoglobin (molar mass = 64456 g/mol ) in her blood. How many…

A: We know that 1 mole of any substance contains Avogadro number of molecules i.e 6.022 ×1023…

Q: Calculate mass (in grams) of sodium in 8.5 g of sodium-containing food additive. NaC7H5O2 (sodium…

A: First determine the moles of sodium benzoate NaC7H5O2 as; Mass of sodium benzoate NaC7H5O2 = 8.5 g…

Q: Calculate the mass, in grams, of 0.433 mol of CO2.

A: Mass in grams from moles can be calculated by using the formula given below as; Mass=moles…

Q: 6.778 X 102 vanadium (V) ions react with 15.001 grams of magnesium metal producing vanadium metal…

A:

Q: How many grams of iron(III) chromate contain 4.69 grams of Fe3+?

A: G

Q: 3. What mass of ZnClh can be prepared from the reaction of 3.27 grams of zinc with 3.30 grams of…

A:

Q: Which one of the following is not equivalent to one mol of the substance? O 65.39 g Zn O 55.85 g Fe…

A:

Q: What mass of CuCl2 is obtained from the reaction between 73 grams of HCl and 31,775 g of Cu?

A: We have given that   Mass of HCl = 73 g  Mass of Cu = 31,775 g  Molar mass of HCl = 36.5 g/mole…

Q: what are there molar mass? K3[Fe(CN)6] and K4[Fe(CN)6]

A:

Q: what is the mass percentage of Ag in a piece of metal with 50.4 g of Ag in a 125 g sample?

A: Given, mass of Ag = 50.4 g  mass of sample = 125 g mass percentage of Ag = ? %

Q: 4) What mass of ZnCl, can be prepared from the reaction of 3.27 grams of zinc with 3.30 grams of…

A: Zinc reacts with hydrochloric acid to form zinc chloride and hydrogen. The equation for the balanced…

Q: Given the reaction below, if 7.20 grams of oxygen are permitted to react with 5.40 grams ammonia,…

A: Ammonia reacts with oxygen to form nitrogen oxide and water. The equation for the balanced chemical…

Q: 4. What mass of Cu(10,); can be formed from 0.5000g of Cuso, SH,0?

A: