chemostry
One gram of a substance containing hydrogen, oxygen, and carbon on combustion produces 1.4656 g of CO2 and 0.6000g of H2O. What is the empirical formula of this compound?
sucrose fermented by microorganisms into ethanol as seen in the reaction C6H12O6---> 2C2H5OH+2CO2, how many grams of ethanol are produced from 2.00 moles of sucrose?
how many molecules of calcium will react with 4.00 moles of ZnSO4 according to the balanced chemical equation Ca+ZnSO4--> CaSO4 +Zn?
What is the mass of oxygen in 1g of glutamine?
in the equation NaOH(s)+ HCl(aq)-->NaCl(aq), the term aq. in parenthesis indicates that HCL is?
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1) 0.0675 moles of sodium reacts with hydrochloric acid. The skeleton equation is: Na (s) Chem...
1) 0.0675 moles of sodium reacts with hydrochloric acid. The skeleton equation is: Na (s) Chem 120 Worksheet: Gas Stoichiometry HCl(aq) → NaCl(aq). a) Balance the equation b) Determine the volume of hydrogen gas that will be produced at STP. H, (B) 2) 0.425 moles of ethane undergoes combustion. The skeleton equation is: CaHs (8) + Oz (6) ► co, el a) Balance the equation. b) Determine the volume of carbon dioxide that will be produced at STP. H2O(g) 3)...
QUESTION 19 10 p Which one of the following is not a soluble compound in water?...
QUESTION 19 10 p Which one of the following is not a soluble compound in water? O KOH O CaSO4 Li3PO4 O Mg(NO312 QUESTION 20 Which one of the following chemical equations is a balanced equation? CH4(E) + O2(g) - CO2(g) + H2008) HCl(aq) + HE2(NO3)2(aq) - He2Cl2ls1 + HNO3(aq) 2NH4Cl(aq) + Pb(NO3)2(aq) - PbCl215) + NH4NO3(aq) 2C3H6tel + 9 020) - 6CO2(g) + 6H2008) Save hle Sone All Answers to save all answers. QUESTION 17 Consider the reaction: Ba(s)...
H20 (g) D. Zn (s) НC (аq) ZnCl2 (aq) + Hа(8) Classify each equation above as...
H20 (g) D. Zn (s) НC (аq) ZnCl2 (aq) + Hа(8) Classify each equation above as double displacement [DD], single displacement [SD], combination [C] (synthesis), decomposition [D], oxidation-reduction [redox], or combustion. combusnon В. О A. DD SD 4. Write the balanced chemical equation for the combustion of methane (CH). are the products: Carbon dioxide and water Chy + 202 CO + atzo C- 0-4 A. Classify the type of reaction? B. How many moles of oxygen react with one (1.0)...
10. How many moles of H2SO4 are there in 98 g of H2SO4? NO(g) 11. Balance...
10. How many moles of H2SO4 are there in 98 g of H2SO4? NO(g) 11. Balance each of the following chemical equations: Nz(g) + 02(8) Fe(s) + O2(g) Fe2O3(s) Na(s) + Cl2(g) NaCl(s) Ca(s) Brz(1) CaBr(s) + Pa(s) + + O2(g) P4010(s) NH3(g) N2(g) + Hz(8) 12. Classify each of the following as a combination, decomposition, single replacement, double replacement, or combustion reaction: Type of reaction Equation of the chemical reaction Cuo(s) + 2HCl(aq) → CuCl(aq) + H2O(1) 2A1,03(s) >...
I need each question answered. #6-12 6. Calculate the number of nitrogen atoms are present in...
I need each question answered. #6-12
6. Calculate the number of nitrogen atoms are present in each of the following quantities. A) 8.45x10 kg nitric acid B) 1280 dg of calcium nitrate 7. Write the empirical formula of the following compounds. A) H2S2 D) Co:PO B) ZnP203 E) C:H16012 C) C12H1oCl2 F) Au204 8. First balance the equation below the answer the questions that follow. ZrCN(aq) + Al2(S2O3)3(aq) — Zr2S2O3(s) + A) How many moles of ZnSO, of can form...
Classify each of these reactions. Ba(CIO), BaCl, +302 NaNO, + HCl-NaCl + HNO, exchange (double replacement)...
Classify each of these reactions. Ba(CIO), BaCl, +302 NaNO, + HCl-NaCl + HNO, exchange (double replacement) combination (synthesis) displacement (single replacement) decomposition combination (synthesis) exchange (double replacement) decomposition displacement (single replacement) CaO + CO2 Caco, ZnSO4 + Mg Zn + MgSO. exchange (double replacement) combination (synthesis) displacement (single replacement) decomposition decomposition combination (synthesis) displacement (single replacement) exchange (double replacement) A compound with the empirical formula CH, has a molar mass of 42 g/mol. What is the molecular formula for this...
QUESTION 1 43.2 mL of aqueous 0.255 M Pb(NO3)2 is mixed with 36.1 mL of 0.415...
QUESTION 1 43.2 mL of aqueous 0.255 M Pb(NO3)2 is mixed with 36.1 mL of 0.415 M NaCl. The equation for the precipitate reaction is: Pb(NO3)2 (aq) + 2 NaCl (aq) --> PbCl2 (s) + 2 NaNO3 (aq) How many moles of PbCl2 are formed? (with correct sig figs) QUESTION 2 What volume (in mL!!!) of 1.28 M HCl is required to react with 3.33 g of zinc (65.41 g/mol) according to the following reaction? Zn(s) + 2 HCl (aq)...
QUESTION 1 The conversion factor which converts mass to moles is called the molar mass. True...
QUESTION 1 The conversion factor which converts mass to moles is called the molar mass. True False QUESTION 2 We have 2 moles of sodium (Na) atoms and 2 moles of chlorine (cl) atoms. The number of atoms for both are True False Question Completion Status: QUESTION 19 Which one of the following is not a soluble compound in water? O KOH CaSO4 O Li₃PO4 Mg(NO3)2 QUESTION 20 Which one of the following chemical equations is a balanced equation? CH(E)...
Part A How many moles of water are made from complete reaction of 22 moles of...
Part A How many moles of water are made from complete reaction of 22 moles of oxygen gas with hydrogen gas? Given the reaction 2H2 + O2- 2H20 - Part E Write the balanced complete ionic equation for the following: LI, CO3(aq) + NaCl(aq) + Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction If no precipitate is formed. reaction occurs, write - Part 6 Write the balanced complete ionic equation for...
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64...
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64 produces 0.3599 g H20 and 2.1977 g CO2, what is the molecular formula of this compound? 3. A mass of 0.4113 g of an unknown acid, HA, is titrated with NaOH. If the acid reacts with 28.10 mL of 0.1055 M NaOH(aq), what is the molar mass of the acid? 4. The amount of calcium in a 15.0-g sample was determined by converting the...
1) 0.0675 moles of sodium reacts with hydrochloric acid. The skeleton equation is: Na (s) Chem 120 Worksheet: Gas Stoichiometry HCl(aq) → NaCl(aq). a) Balance the equation b) Determine the volume of hydrogen gas that will be produced at STP. H, (B) 2) 0.425 moles of ethane undergoes combustion. The skeleton equation is: CaHs (8) + Oz (6) ► co, el a) Balance the equation. b) Determine the volume of carbon dioxide that will be produced at STP. H2O(g) 3)...
QUESTION 19 10 p Which one of the following is not a soluble compound in water? O KOH O CaSO4 Li3PO4 O Mg(NO312 QUESTION 20 Which one of the following chemical equations is a balanced equation? CH4(E) + O2(g) - CO2(g) + H2008) HCl(aq) + HE2(NO3)2(aq) - He2Cl2ls1 + HNO3(aq) 2NH4Cl(aq) + Pb(NO3)2(aq) - PbCl215) + NH4NO3(aq) 2C3H6tel + 9 020) - 6CO2(g) + 6H2008) Save hle Sone All Answers to save all answers. QUESTION 17 Consider the reaction: Ba(s)...
H20 (g) D. Zn (s) НC (аq) ZnCl2 (aq) + Hа(8) Classify each equation above as double displacement [DD], single displacement [SD], combination [C] (synthesis), decomposition [D], oxidation-reduction [redox], or combustion. combusnon В. О A. DD SD 4. Write the balanced chemical equation for the combustion of methane (CH). are the products: Carbon dioxide and water Chy + 202 CO + atzo C- 0-4 A. Classify the type of reaction? B. How many moles of oxygen react with one (1.0)...
10. How many moles of H2SO4 are there in 98 g of H2SO4? NO(g) 11. Balance each of the following chemical equations: Nz(g) + 02(8) Fe(s) + O2(g) Fe2O3(s) Na(s) + Cl2(g) NaCl(s) Ca(s) Brz(1) CaBr(s) + Pa(s) + + O2(g) P4010(s) NH3(g) N2(g) + Hz(8) 12. Classify each of the following as a combination, decomposition, single replacement, double replacement, or combustion reaction: Type of reaction Equation of the chemical reaction Cuo(s) + 2HCl(aq) → CuCl(aq) + H2O(1) 2A1,03(s) >...
I need each question answered. #6-12
6. Calculate the number of nitrogen atoms are present in each of the following quantities. A) 8.45x10 kg nitric acid B) 1280 dg of calcium nitrate 7. Write the empirical formula of the following compounds. A) H2S2 D) Co:PO B) ZnP203 E) C:H16012 C) C12H1oCl2 F) Au204 8. First balance the equation below the answer the questions that follow. ZrCN(aq) + Al2(S2O3)3(aq) — Zr2S2O3(s) + A) How many moles of ZnSO, of can form...
Classify each of these reactions. Ba(CIO), BaCl, +302 NaNO, + HCl-NaCl + HNO, exchange (double replacement) combination (synthesis) displacement (single replacement) decomposition combination (synthesis) exchange (double replacement) decomposition displacement (single replacement) CaO + CO2 Caco, ZnSO4 + Mg Zn + MgSO. exchange (double replacement) combination (synthesis) displacement (single replacement) decomposition decomposition combination (synthesis) displacement (single replacement) exchange (double replacement) A compound with the empirical formula CH, has a molar mass of 42 g/mol. What is the molecular formula for this...
QUESTION 1 The conversion factor which converts mass to moles is called the molar mass. True False QUESTION 2 We have 2 moles of sodium (Na) atoms and 2 moles of chlorine (cl) atoms. The number of atoms for both are True False Question Completion Status: QUESTION 19 Which one of the following is not a soluble compound in water? O KOH CaSO4 O Li₃PO4 Mg(NO3)2 QUESTION 20 Which one of the following chemical equations is a balanced equation? CH(E)...
Part A How many moles of water are made from complete reaction of 22 moles of oxygen gas with hydrogen gas? Given the reaction 2H2 + O2- 2H20 - Part E Write the balanced complete ionic equation for the following: LI, CO3(aq) + NaCl(aq) + Express your answer as a chemical equation. Identify all of the phases in your answer. Enter noreaction If no precipitate is formed. reaction occurs, write - Part 6 Write the balanced complete ionic equation for...
Naphthalene, a hydrocarbon, has an approximate molar mass of 128 g/mole. If the combustion of 64 produces 0.3599 g H20 and 2.1977 g CO2, what is the molecular formula of this compound? 3. A mass of 0.4113 g of an unknown acid, HA, is titrated with NaOH. If the acid reacts with 28.10 mL of 0.1055 M NaOH(aq), what is the molar mass of the acid? 4. The amount of calcium in a 15.0-g sample was determined by converting the...
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