Solid calcium sulfate is collected in a Büchner funnel and dried. The mass of the solid product is 1.03 g. How many grams of CaCO3(») are present in your sample?

Q: What is the minimum amount of KCN in moles needed to extract 30.0 g (about an ounce) of gold? Au +…

A: What is the minimum amount of KCN needed to extract 30 g of gold ?

Q: 5. K3PO4 +Al(NO3)3 →_KNO3 +_AIPO4 a. Balance the reaction b. What is the reaction type? c. If 30.2g…

A: Since you have asked multiple questions, we will solve the first three sub-parts for you. If you…

Q: How many grams of potassium chlorate are there At the completion of reactions?

A: Given that, the decomposition reaction of potassium chlorate, KClO3. We have to tell the amount of…

Q: balance this equationC2H4(g)+O2(g)----->CO2(g)+H2O(g)

A: Balancing a chemical equationSteps,First balance carbon on both sidesThen balance hydrogen and…

Q: Iodine is prepared both in the laboratory and commercially by adding Cl2(g) to an aqueous solution…

A: Given reaction is

Q: Balance this equation:  _______C6H14O + _____ O2 -------> ______H2O +____ CO2

A:

Q: 2.Iron ore is impure Fe2O3. When Fe2O3 is heated with an excess of carbon (coke), metallic iron and…

A: Weight of sample = 938kg = 938000g Pure iron in sample = 523kg Assuming that impurities donot…

Q: 2. You start with 2.46 g of KCIO345) and heat it. Use stoichiometry to calculate the mass (g) of KCI…

A:

Q: 10. A 2.00g strip of Mg is reacted with oxygen inside a flash bulb by pressing the shutter. The…

A: Magnesium reacts with oxygen to form magnesium oxide. Reactants always react with each other in a…

Q: Consider the reaction. Pb(SO,), + 2 Zn → 2 ZNSO, + Pb If 0.234 mol of zinc reacts with excess…

A: Recall the given reaction       PbSO42 + 2Zn → 2ZnSO4 + Pb Given that 0.234 moles of zinc have been…

Q: Q1: Calculate the mass needed to prepare 2.0L of 0.05M AGNO, (M. Mass 169.87g/mol) from its primary…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: A 0.652-g sample of a pure strontium halide reacts with excess sulfuric acid, and the solid…

A: Given data contains, Mass of pure strontium halide is 0.652 g. Mass of solid strontium sulfate is…

Q: Consider the reaction: CH4(g) + CCl4(g) → 2CH2Cl2(g) Given an initial mass of 18.25 g CH4, an…

A: Given that - balanced Chemical equation -  CH4(g) + CCl4(g) ---------> 2CH2Cl2(g)    Molar masses…

Q: Balance the following equation by filling the gaps with appropriate numbers. OMn + 0HCI » OMncl, +…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: the mineral gibbsite has the formula al(oh)3. what mass in,in kg, of al is present in 2.9 kg of…

A: Given, mass of gibbsite,  Al(OH)3  = 2.9 kg = 2900 g Thus, moles of gibbsite can be calculated as,…

Q: hat are the percentages of carbon, hydrogen, and nitrogen in the compound? What is the empirical…

A: Solution: So this question is from the stoichiometry. We  have general knowledge of formulae for…

Q: hydrogen bromide (HBr).   If 7 moles of hydrogen gas are mixed with 5 moles of bromine gas, how…

A: Given the reaction between hydrogen gas and bromine gas to form gaseous hydrogen bromide (HBr).…

Q: A chemist requires 0.589 mol Na, CO, for a reaction. How many grams does this correspond to? g Na,…

A: Moles of Na2CO3 = 0.589 mol Mass of Na2CO3 = ? Molar Mass of Na2CO3 = 105.988 g mol-1

Q: 6.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: balance this chemical reaction            ____C6H12O6   →      ____   C3H6O3

A: Given reaction is, ____C6H12O6   →      ____   C3H6O3

Q: millan Lea Table salt, NaCI(s), and sugar, C,H„0,(s), are accidentally mixed. A 5.00 g sample is…

A: Sample taken = 5.00 g  CO2 produced = 1.60 g

Q: A mass of 2.052 g of a metal carbonate, MCO3, is heated to give the metal oxide and 0.4576 g CO2.…

A: The reaction taking place is  MCO3 (s)  -----> MO(s) + CO2 (g) From the above balanced reaction,…

Q: If 0.7688 moles of aluminum nitrate (aq) reacts with excess potassium hydroxide (aq), how many moles…

A:

Q: |Solid silver oxide, Ag2O(s), decomposes at tempera- | tures in excess of 300 °C, yielding metallic…

A: The balanced decomposition reaction of silver oxide (Ag2O) at temperature in excess of 3000C can be…

Q: If a solution containing 50.87 g of mercury(II) perchlorate is allowed to react completely with a…

A:

Q: A 4.67 g sample of a pure strontium halide reacts with excess sulfuric acid, and the solid strontium…

A: Given, A 4.67 g sample of a pure strontium halide reacts with excess sulfuric acid, and the solid…

Q: Suppose a student starts with 2.4319 g of a sand mixture and separates the components into 1.3012 g…

A: percent of SiO2 in the starting mixture =    =Mass of SiO2 × 100/ Total Mass of the mixture =…

Q: The molar mass of aspirin is 180.16 g/mol. What is the theoretical yield in grams, for the aspirin…

A: NOTE : Since the concentration of acetic anhydride is not given, I'm assuming it is present in…

Q: If 0.100 g of a compound containing C, H, and O is combusted completed in an excess of oxygen and…

A: Mass of the Carbon can be calculated as

Q: If nickel(II) formate is heated to 300 °C in the absence of air for 30 minutes, the salt decomposes…

A:

Q: balance this chemical reaction        ____  C6H11NO3S →       ____  C3H5OS +       _____  C3H6NO2

A: The balanced equation is shown below.

Q: What mass of N2H4, in grams, is needed to react completely with 27.9 g of H2O2?

A:

Q: 1.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: P4(s) + 6 Cl2(g) –→ 4PC13(g). A sample of PCl3 of mass 276.6 g was collected from the reaction of…

A: given :-  P4(s) + 6Cl2(g) →4PCl3(g)  mass of P4 = 74.69 g  actual yield of PCl3 = 276.6 g  To…

Q: A 1.897 g sample of pure Mg(HCO3)2 was heated and decomposed. When the sample cooled, it weighed…

A: Any reaction's percent yield gets computing by taking ratio of its actual yield with its calculated…

Q: (a) One molecule of the antibiotic penicillin G has a massof 5.342 x 10-21 g. What is the molar mass…

A:

Q: If 226.1 g of tin(II) chloride was the actual amount obtained in a reaction for which the…

A:

Q: A newly discovered metalloprotein, which contains four atoms of Fe per molecule of protein, is found…

A: Given: Percent by mass of Fe in the compound = 0.747 %. And the number of atoms of Fe per molecule =…

Q: In a synthesis reaction, you combine 0.55 g Mg with an excess of N(g). The synthesis product masses…

A: Given, Mass of product =0.76 g mass of Magnesium =0.55 g

Q: An impure sample of table salt (NaCl) that was dissolved in water and treated with silver nitrate to…

A: Mass of the impure sample = 1.741 g  Mass of AgCl formed = 4.084 g

Q: 2Cu(NO3)2 -----> 2CuO + 4NO2 + O2 WEIGHT OF COPPER NITRATE = 4.5616g WEIGHT OF COPPER OXIDE =…

A:

Q: Table salt, NaCl(s), and sugar, C,,H„0(s), are accidentally mixed. A 5.50 g sample is burned, and…

A: Balanced Combustion reaction of sugar:  C12H22O11 + 12O2 .....> 12CO2 + 11H2O Mass of sample =…

Q: A 0.45g sample of aspirin is decomposed into its constituent elements and found to contain 0.27g C,…

A: Given: Mass of aspirin sample = 0.45 g. Mass of C produced = 0.27 g. Mass of H produced = 0.020 g…

Q: What is the mass percentage of C in CH,CH,OH?

A:

Q: what mass of Al2S3(g Al2S3) would be produced if 9.886 g Al were reacted with excess Ag2S?

A:

Q: Ammonia, NH3, can be synthesized by this reaction: 2 NO(g) + 5 H2 (g) ----------→ 2 NH3 (g) + 2 H2O…

A: The balanced reaction taking place is given as, => 2 NO (g) + 5 H2 (g) ---------> 2 NH3 (g) +…

Q: Titanium metal is made by reacting titanium (IV) chloride with magnesium metal.  Magnesium chloride…

A:

Q: In the reaction involving 2.6 g of lead (II) nitrate and 4.6 g of potassium bromide, what is the…

A:

Q: Balance the equation  C3 H6 (g)  + O2(g) ---> CO2 (g) + O(g)

A: Chemical equation is the representation of a chemical reaction, in which the reactants and products…

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.