How do i solve the problem for a? 4.68g of Si and 5.32g of O? My textbook has the answer but i don't know how they got the answer.
Homework Answers
How do you calculate questions 1 - 8 for the data analysis section? A. Precipitation of CaC,O, H,O from the Salt...
How do you calculate questions 1 - 8 for the data analysis
section?
A. Precipitation of CaC,O, H,O from the Salt Mixture Unknown number Trial 1 Trial 2 1. Mass of beaker (g) 59.45 59.45 5.oS Mass of beaker and salt mixture (g) 2. 3. Mass of salt mixture (g) I, oo oS 4. Mass of filter paper (g 5. Mass of filter paper and product after air-dried or oven-dried (g) 0, 35 6. Mass of dried product (g) 7....
10. A compound has the following percent composition by mass: C: 40.92%; H: 4.58%: O: 54.50%....
10. A compound has the following percent composition by mass: C: 40.92%; H: 4.58%: O: 54.50%. Calculate the molecular formula if Its molar mass is 216 g/mole.
Identify the bond with the lowest bond energy. C=C Si=O C=N O=O N=N How do I...
Identify the bond with the lowest bond energy. C=C Si=O C=N O=O N=N How do I go about solving this on a test?
1- Determine the number of moles of oxygen atoms in 2.15 mol CO2. 2- How many H...
1- Determine the number of moles of oxygen atoms in 2.15 mol CO2. 2- How many H atoms are present in 35.2g of CH2Br2. 3- Calculate the empirical formula of the natural flavor responsible for the taste and smell of vanilla, knowing the elemental mass percent composition: C 63.15% , H 5.30%, O 31.55%. Write the formula in the form CxHyOz. 4- Calculate the number of moles in 72.5 g of N02. 5- Calculate the mass of 15.7 mol of HNO3. 6-...
how do I do this? Review Intelligent Tutoring Question 18.078 Calculate ΔS"for the following reactions in...
how do I do this?
Review Intelligent Tutoring Question 18.078 Calculate ΔS"for the following reactions in J K-1 Substance S (J mol-K-) Substance S J mol-K- Agf) AgCIG) Ch(g) H2(g) O-(g) H,0(g) H,oU) 42.55 96.2 223.0 130.6 205.0 188.7 69.96 CaCO6) CaSO,() H.sOA1) CO2(g) NHs(g) HCKg) NH CIG) 92.9 107 157 213.6 192.5 186.7 94.6 Ag(s) + 1 /2 Cl2(g) → AgCl(s) JK- the tolerance is +/-3% H2(g) + 1 /2 02(g) → H2O(g) JK1 the tolerance is +/-3%
How do I find i, k, l, m, n, o, p, and q? 5. a. 20.1044...
How do I find i, k, l, m, n, o, p, and q?
5. a. 20.1044 Mass of crucible + cover b. Mass of crucible +cover+unknown 22 . Ч897 22. 4886 NA NA 4.023 16 389 c. Mass of crucible+ cover+ unknown after first heating d. Mass of crucible + cover + unknown after second heating e. Mass of crucible + cover+unknown (after third heating if necessary) f. Mass of crucible +cover + unknown (after fourth heating if necessary) g....
What is the percent nitrogen in (NH4)₂O? Find the empirical formula of each. of the following:...
What is the percent nitrogen in (NH4)₂O? Find the empirical formula of each. of the following: a) 55.37K, 14.6% P, 30.170 b.) 24.57. Na, 14.97 Si, 60.6%F C) 62.1% C, 5.217 H, 12.17N, 20.770 ) What is the molecular formula for each? a.) Empirical formula NH₂ Cl, molar mass = 51.5 g/mol 009 b.) Empirical formula Hco, molar mass=90.0g/mol c.) Empirical formula C₂H ₂ O molar mass = 88 g/mol The headache remedy ibuprofen is 75.79 8.8%H, and 15.5%0. It...
Help me solve and understand this: NA = 6.022 x10 23 mole -! 1. Calculate the...
Help me solve and understand this:
NA = 6.022 x10 23 mole -! 1. Calculate the following: c) the number of moles contained in 4.239 of methane (CH4) (b) the number of atoms in 7.469 of Li © the number of molecules in 43.0 g of NHz (ammonia) d) the number of grams in 2.969 x 1022molecules of CCl4 let chloride) 2. Find the percent composition of each element in acetamide, CaH NO (please use two places past the decimal(ie....
How do I calculate the theoretical yield and percent yield of the reaction below? I used...
How do I calculate the theoretical yield and percent yield of
the reaction below?
I used 0.120 g of 4-aminobenzoic acid, 2.0 mL of ethanol, and
0.5 mL of concentrated sulfuric acid
The mass of the final product was 0.42 g
to O CH2CH2OH o H2N- HN OH H2SO4 OCH CH3 4-Aminobenzoic acid Benzocaine
how do i solve this problem? 3. Calculate the density of a rod of metal in...
how do i solve this problem?
3. Calculate the density of a rod of metal in g/cm', with a mass of 9.58g, a diameter of 8 mm (0.8cm) and a height of 3.5cm. Volume = Density =
How do you calculate questions 1 - 8 for the data analysis
section?
A. Precipitation of CaC,O, H,O from the Salt Mixture Unknown number Trial 1 Trial 2 1. Mass of beaker (g) 59.45 59.45 5.oS Mass of beaker and salt mixture (g) 2. 3. Mass of salt mixture (g) I, oo oS 4. Mass of filter paper (g 5. Mass of filter paper and product after air-dried or oven-dried (g) 0, 35 6. Mass of dried product (g) 7....
10. A compound has the following percent composition by mass: C: 40.92%; H: 4.58%: O: 54.50%. Calculate the molecular formula if Its molar mass is 216 g/mole.
how do I do this?
Review Intelligent Tutoring Question 18.078 Calculate ΔS"for the following reactions in J K-1 Substance S (J mol-K-) Substance S J mol-K- Agf) AgCIG) Ch(g) H2(g) O-(g) H,0(g) H,oU) 42.55 96.2 223.0 130.6 205.0 188.7 69.96 CaCO6) CaSO,() H.sOA1) CO2(g) NHs(g) HCKg) NH CIG) 92.9 107 157 213.6 192.5 186.7 94.6 Ag(s) + 1 /2 Cl2(g) → AgCl(s) JK- the tolerance is +/-3% H2(g) + 1 /2 02(g) → H2O(g) JK1 the tolerance is +/-3%
How do I find i, k, l, m, n, o, p, and q?
5. a. 20.1044 Mass of crucible + cover b. Mass of crucible +cover+unknown 22 . Ч897 22. 4886 NA NA 4.023 16 389 c. Mass of crucible+ cover+ unknown after first heating d. Mass of crucible + cover + unknown after second heating e. Mass of crucible + cover+unknown (after third heating if necessary) f. Mass of crucible +cover + unknown (after fourth heating if necessary) g....
What is the percent nitrogen in (NH4)₂O? Find the empirical formula of each. of the following: a) 55.37K, 14.6% P, 30.170 b.) 24.57. Na, 14.97 Si, 60.6%F C) 62.1% C, 5.217 H, 12.17N, 20.770 ) What is the molecular formula for each? a.) Empirical formula NH₂ Cl, molar mass = 51.5 g/mol 009 b.) Empirical formula Hco, molar mass=90.0g/mol c.) Empirical formula C₂H ₂ O molar mass = 88 g/mol The headache remedy ibuprofen is 75.79 8.8%H, and 15.5%0. It...
Help me solve and understand this:
NA = 6.022 x10 23 mole -! 1. Calculate the following: c) the number of moles contained in 4.239 of methane (CH4) (b) the number of atoms in 7.469 of Li © the number of molecules in 43.0 g of NHz (ammonia) d) the number of grams in 2.969 x 1022molecules of CCl4 let chloride) 2. Find the percent composition of each element in acetamide, CaH NO (please use two places past the decimal(ie....
How do I calculate the theoretical yield and percent yield of
the reaction below?
I used 0.120 g of 4-aminobenzoic acid, 2.0 mL of ethanol, and
0.5 mL of concentrated sulfuric acid
The mass of the final product was 0.42 g
to O CH2CH2OH o H2N- HN OH H2SO4 OCH CH3 4-Aminobenzoic acid Benzocaine
how do i solve this problem?
3. Calculate the density of a rod of metal in g/cm', with a mass of 9.58g, a diameter of 8 mm (0.8cm) and a height of 3.5cm. Volume = Density =
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