2. A particular brand of beef jerky contains 0.0552 % sodium nitrite (NaNO2) by mass and is sold in an 8 oz (1 oz = 28.35 g) bag. What mass of sodium does the sodium nitrite contribute to the bag of beef jerky? ANS: 0.0416 g Na mass of NaNO2 % NaNO2 = x 100% mass of sample

Q: Normal saline is an isotonic (to humans) solution which is used in medicine for volume…

A: Given: Concentration of NaCl in saline = 0.9 g/dL. And volume of saline solution = 1 L Since 1 L =…

Q: A compound contains 21.6% Na, 33.3% Cl, and 45.1% O. Write the empirical formula and name the…

A:

Q: alculate: c. Total number of ions in 5.82 g of SrH2 d. Mass in mg of 2.88 x 10 22 formula units of…

A: Number of moles is defined as the ratio of given mass by the molar mass. The formula to calculate…

Q: Ex 1: A 14.81 g sample of a zinc sulfate hydrate, ZnSO4•xH;O(s), is heated to dryness leaving 8.27 g…

A: Given: Mass of hydrate used = 14.81 g. And mass of anhydrous salt ZnSO4 produced = 8.27 g.

Q: Calcium carbide, CaC2, can be produced in an electric furnace by strongly heating calcium oxide…

A: A balanced equation is one in which the number of atoms on both side of the equation are same. A…

Q: A) What is the formula of magnesium melonite dihydrate?  B) What is the mass % of melon in copper…

A:

Q: A student, Ken, is given a mixture containing two carbonate compounds. The mixture includes MgCO,…

A: Given,

Q: What mass of SbF3 (179g x mol^-1) is needed to produce 1.00 g of Freon-12, CCl2F2 (molar mass =121 g…

A: We have chemical balanced equation of Freon-12 from SbF3 . We have to calculate the amount of SbF3…

Q: Consider the following chemical reaction: Na2CO3(aq) + HCl(aq) -----------> NaCl(aq) + CO2(g) +…

A:

Q: Q8 -Boric acid, H3BO3, is a mild antiseptic and is often used as an eyewash. A sample contains…

A:

Q: A student weighs an empty beaker at 85.301 g. A sample of Na2SO4·??H2O is added to the beaker, and…

A: Mass of empty beaker = 85.301 g  Mass of beaker + hydrated salt = 86.607 g  Mass of beaker +…

Q: Calculate the mass (in kilograms) of chlorine in 25 kg of each chlorofluorocarbon (CFC). a. CF,Cl2…

A: Solution-  mass of the clorine in the CF2Cl2-=molar mass of colorinemolar mass of the…

Q: A 0.25 M NAOH is to be standardized with KHP. How much 100% KHP (204.22 g/mol) should be weighed so…

A: Given, Molarity of NaOH solution = 0.25 M = 0.25 mol/L Volume of NaOH solution = 15 mL = 0.015 L…

Q: NaI (aq) + Cl2 (g) → I2 (s) + NaCl (aq) Given this equation calculate how much NaI is required to…

A: Consider the given information is as follows; Mass of I2 produced = 3.44 kg = 3440 g Mass of NaI…

Q: A sample of sodium sulfite (N a 2 S O 3 ) has a mass of 2.25 g.a. How many N a + ions are present?b.…

A: Given that mass of Na2SO4 = 2.25g Molar mass of Na2SO4 is given by:     Molar mass of Na2SO4 =…

Q: 1. The number of atoms in 2.0 mol of nitrogen gas, N2, is: a. 1.8 x 1024 b. 2.4 x 1023 c. 1.2 x 1024…

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

Q: Part B. 4. Volume of a Drop of Water Number of drops (10) 10 Mass of flask + watchgiass + 10 drops…

A: A numerical problem based on dimensional analysis, which is to be accomplished.

Q: A mixture was found to contain 1.50g NH4CI, 0.80 g NaCI, and 1.20 g SiO2. What is the percentage of…

A: Given: Mass of NH4Cl = 1.50 g Mass of NaCl = 0.80 g Mass of SiO2 = 1.20 g

Q: Calculate the percent mass of each element of a compound NaHSO3 = 23.0 g/mol; H = 1.008 g/mol; S =…

A: Mass percent of each element is defined as the percentage of mass each element is having compared to…

Q: A sugar crystal contains approximately 1.8 x 10" sucrose (C12H2201) molecules. What is its mass in…

A: The molar mass of sucrose (C12H22O11) = 180 g/mol The number of molecules in 1 mole = 6.022 × 1023

Q: A student, Ken, is given a mixture containing two nitrate compoundsnitrate compounds. The mixture…

A:

Q: The molecule TFM is used as a lampricide to control the sea lamprey population in the Great Lakes.…

A:

Q: 250(g) + 02 (g) + HCI (g) NH3(g) MgCO3 250 (g) NH,CI (s) + CO2(g) Mgo (s) +

A: Entropy denotes by a symbol 's' . Entropy of a universe increasses spontaneously.   Second law of…

Q: 3.01 x 1023 molecules of freon CCl,F,? 1.505 x 1024 molecules of sucrose C12H2201 1.806 x 1024…

A: One mole of any substance contains 6.023 x 1023 Molecules, ions , atoms.

Q: A mixture of NaCl and NaBr has a mass of 2.00 g and contains 0.75 g of Na. What is the mass of NaBr…

A: Mass of NaCl is X and Mass of NaBr is Y Hence, X+ Y = 2 gm ……(1)   and  X = 2 - Y But, % Na = Mass…

Q: Sodium reacts with oxygen to produce sodium oxide in a synthesis reaction. A chemist needs to…

A: Sodium metal reacts with oxygen to form sodium oxide. The equation for the balanced chemical…

Q: In using a mass spectrometer, a chemist sees a peak at a mass of 30.0106 AMU. Of the choices 12C2…

A:

Q: 2Na + Cl2 → 2NaCl. If I want to make 100.0 g of salt, how much elemental chlorine would I need?

A: First convert mass into molar mass  Then use mole-mole relationship  After getting mole of  Cl2 then…

Q: The density of the 99.8 ml solution is 1,093 g/ml and it contains 12% KI by mass. This solution is…

A:

Q: How many sodium ions are present in 20.0 mL of 0.10 M Na,S? A. 0.002 В. О.004 С. 1.20 х 1021 D. 2.41…

A: Given  Volume = 20 mL               = 20 × 10-3 Liter           ( 1 mL = 10-3  Liter )…

Q: 1.92 g M2+ ion reacts with 0.158 mol X- ion to produce a compound, MX2, which is 86.8 % X by mass.…

A:

Q: A 3.48 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 4.76 x 1022…

A:

Q: 1. How many grams of Mg are present in 4.04 grams of magnesium phosphate? grams Mgt. Mg²",

A: Given: Mass of magnesium phosphate (Mg3(PO4)2) = 4.04 g Molar mass of magnesium phosphate = 262.8582…

Q: The carat is the unit of mass used by jewelers, and it is exactly 200 mg. How many carbon atoms are…

A:

Q: Fe2O3(s)  +  2 Al(s) ------>  Al2O3(s)   +   2 Fe(l) 159.70           26.98                101.96…

A:

Q: 5. Molecular Mg(OH).(s) H,SO.(aq) MgSO.(aq) + H,0() Detailed ionic Net ionic

A: Given-  Molecular equilibrium-> Mg(OH)2(s) + H2SO4 (aq) ----> MgSO4(aq) + H2O(l)

Q: Ca OH Ca* Ca Ca* OH OH OH OH Ca* OH OH Ca* OH OH Ca* OH Ca+ Ca(OH), OH Саон A C Which beaker best…

A: Calcium hydroxide is a strong base with a molecular formula Ca(OH)2. It does not dissolve much in…

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

A:

Q: 4. A 3.5 M sample of hydrochloric acid, HCl, has a density of 1.45 g/ml. What is the mass % (wt/wt)…

A: Molarity of HCl = 3.5M = 3.5 mol/L density of HCl solution = 1.45 g/mL Assume total Volume of HCl…

Q: A 10.5 g sample of lithium is reacted with 18.5 g of fluorine to form lithium fluoride: Li + F2 →…

A: Given, A 10.5 g sample of lithium is reacted with 18.5 g of fluorine to form lithium fluoride:Li +…

Q: A 10 gram sample of NaCl will have the same percent composition (percent by mass) of Na and Cl than…

A:

Q: A sample containing NaCl, Na,SO, and NaNO, gives the following elemental analysis: Na: 32.08…

A:

Q: A student, Ken, is given a mixture containing two nitrate compounds. The mixture includes NaNO, and…

A:

Q: A 10 gram sample of NaCl will have the same percent composition (percent by mass) of Na and Cl than…

A: Mass ratio of Na/Cl in 10 gram of NaCl Molecular weight = 58.44 (g/mole) Atomic weight of Na = 23.99…

Q: Consider the following compound for questions 2 through 5. Sr3(PO4)2•4H2O Calculate the…

A: Given compound is Sr3(PO4)2•4H2O The theoretical percent strontium by mass in Sr3(PO4)2•4H2O = Mass…

Q: Calculate the mass of Na in 80.0 g NaCl. A. 31.5 g B. 6.2 g C. 40.0 g D. 1.9 g

A: molar mass of NaCl  =mass of Na +mass of Cl                                   =23+35.5…

Q: 3. A 5.000 g sample of an organic compound containing C, H, and O atoms was combusted and produced…

A:

Q: The active ingredient in photographic fixer solution contains sodium, sulfur, and oxygen. Analysis…

A: Empirical formula: The empirical formula of a chemical compound tells us about the relative ratios…

Q: Carbon tetrachloride was prepared by reacting 23.6 g of carbon disulfide and 47 g of chlorine gas.…

A:

Q: 1. A sample containing only CaCO3 (100.0869) and MgCO3 (84.3139) was ignited and carbonates…

A: Molar mass of CaCO3 = 100.0869 g/mol Molar mass of MgCO3 = 84.3139 g/mol Molar mass of CaO = 56.0774…