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Stoichiometry
Page 9
Questions (11,820)
how many grams of chromium are required to react with 125 mL of 0.75M CuSO4?
3 answers
asked by
grant
908 views
A reaction yields 3.75 L of nitrogen monoxide. The Volume is measured at 19 *C and a pressure of 1.10 atm. What mass of NO was
4 answers
asked by
CHEMMY
1,784 views
Na2CO3 + 2HNO3 -> 2NaNO3 + H2O + CO2
Time(s) Mass of Flask Plus Contents (g) 0 150.50 10 149.30 20 148.10 30 148.10 a)calculate
3 answers
asked by
lemon
1,132 views
How many grams of oxygen can be produced from the decomposition of 100g of KClO3?
5 answers
asked by
Mentally Frazzled
4,832 views
9.0g of hydrated salted CuSO4 x H2O was dissolved in 500cm3 of water and it's concentration in moldm3 was experimentally found
2 answers
asked anonymously
57 views
Calculate the number of moles and number of grams of solute in 250 mL of a 0.10M CaCl2.
4 answers
asked by
Shaun
2,706 views
25g of a sample of ferrous sulphate was dissolved in water containing dilute h2s04 and the volume made up to one litre. 25ml of
2 answers
asked by
Fai
596 views
A 10g sample of impure iron iii sulphate, FeSO4 was dissolved in water to make 250cm3 of solution. Exactly 25.0cm3 of the
3 answers
asked anonymously
202 views
A 7.58 gram sample of benzoic acid, C6H5CO2H, is dissolved in 100 mL of benzene. The density of benzene is 0.879 g/mL. What is
1 answer
asked by
Kizner (chem)
855 views
When 50 g of silicon dioxide is heated with an excess of carbon, 32.2 g of silicon carbide is produced. what is the percent
4 answers
asked by
Meg
1,898 views
How many grams does 0.500 moles of CuBr weigh?
3 answers
asked by
Jeanette
1,418 views
what volume of benzene ( C6H6 d=0.88g/ml molar mass = 78.11) is required to produce 1.5*10^3 kj of heat
2 answers
asked by
na
1,066 views
If 6.20 mol of calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2), a gas used in welding,
2 answers
asked by
nina
1,062 views
1. Iron oxide and carbon monoxide react according to the following equation . Identify which reactant is limiting and which is
2 answers
asked by
Tiffany
1,035 views
Silicon carbide is produced by heating silicon dioxide and carbon at high temperatures as shown by the reaction below. How many
2 answers
asked by
Lillian Scott
690 views
In a titration, 4.1 g of an acid (HX) requires
32.8 mL of 0.74 M NaOH(aq) for complete reaction. What is the molar mass of the
2 answers
asked by
Anonymous
556 views
How many grams of NaOH will be needed to prepare 250ml of 0.1M solution:-
2 answers
asked by
Md Shams Rizvi
533 views
How many grams of glacial acetic acid should be used to make 250 mL of 2.00 M acetic acid? Show all your work.
1 answer
asked by
Lily
476 views
Given the equation below for the synthesis of sucrose setup the mole ratios of the following: CO2+H2O—->C12H22O11+O2 for this
1 answer
asked anonymously
56 views
10 Fe(NH4)2(SO4)2·6H2O + 2 KMnO4 + 8 H2SO4 -> 5 Fe2(SO4)3 + 2 MnSO4 + K2SO4 + 10 NH4HSO4 + 16 H2O
mole ratio for MnO4^-
1 answer
asked anonymously
60 views
If we react 23 grams of sodium with 35.5 grams of chlorine to make sodium chloride. How many grams of sodium choride do we make?
1 answer
asked anonymously
61 views
How many grams of oxygen can be prepared by the decomposition of 12
grams of mercury (ll) oxide?
1 answer
asked anonymously
26 views
Consider the following 0.100M solutions: the equivalence point is reached when 10ml of 0.100M NaOH have been added to 10.00ml of
1 answer
asked by
talis sanchez
33 views
Zn + 2HCl → ZnCl2 + H2
At conditions of Standard Temperature and Pressure, determine how many liters of hydrogen gas are
1 answer
asked anonymously
33 views
How many moles are contained in each of the following? Be sure each of your answer entries has the correct number of significant
1 answer
asked anonymously
61 views
How many moles are contained in each number of grams of stevia (C38H60O18, molar mass 804.86
number of significant figures. Part
1 answer
asked anonymously
45 views
Elements A and B react according to the following equation. 4A + B2 →2A2B The molar mass of A is 12 g/mol. The molar mass of B
1 answer
asked anonymously
46 views
The molar mass of ammonium acetate is 77.083 g/mol. A student uses 0.100 mol of ammonium acetate in a chemical reaction. The
1 answer
asked by
the
30 views
A chemist will use a sample of 30 g of ethanol (CH3CH2OH) in an experiment. In one to two sentences, make and justify a claim
1 answer
asked by
the
60 views
Find the percentage composition of calcium in the following compound, round to the nearest hundredth of a percent. calcium
1 answer
asked by
hunny
30 views
Which statement best describes the relationship between the scientist and experiment that helped modern chemists study
1 answer
asked anonymously
19 views
Determine the number of atoms in 3.50 mol of Zinc, Zn. Avogadro's number is 6.022 x 1023
.
1 answer
asked anonymously
36 views
Use the reaction to answer the question.
Fe2O3+3H2SO4 How many atoms of oxygen will be found in the product(s) of the reaction?
1 answer
asked by
Alex Burdine
16 views
Using the information seen here, calculate the molar mass of Tin(II) fluoride, SnF2
, to the nearest hundredth of a gram. (2
1 answer
asked by
murder
27 views
Find the percentage composition of calcium in the following compound, round to the nearest hundredth of a percent.
calcium
1 answer
asked by
murder
56 views
Sugar reacts with oxygen gas to produce carbon dioxide and water (C₆H₁₂O₆ + 6O₂⟶6CO₂+6H₂O). Which ratio of
1 answer
asked anonymously
27 views
Determine the percentages of Na and K in a 0.6128 g sample containing NaCl and KCl treated with AgNO3 yielded 1.039 g of dried
1 answer
asked anonymously
14 views
How to perform stoichiometry calculations
1 answer
asked by
Alicia
22 views
Based on moles of hcl reacted, determine the grams of magnesium.
1 answer
asked by
Alicia
20 views
How do you find PERCENT composition by mass or PERCENT Purity calculations
1 answer
asked by
Alicia
22 views
Peanuts typically contain 21.5% oil if you have the process that allows you to extract all the oil what mass of peanuts would be
1 answer
asked by
Alicia
13 views
Calculate the volume (in cm3) required to make a solution of concentration 0,6 mol.dm-3 if 0,2 moles of solute is present.
1 answer
asked anonymously
11 views
5.0 moles of solid sodium chloride (NaCl) are used to prepare a 5.0 M NaCl solution. What is the volume of the solution?
5 answers
asked by
Morgan
2,317 views
Can anyone help me with this question
How much NaCl should be added to 0.35 L of a 0.15 M solution of AgNO3 so that it reacts
5 answers
asked by
William
3,100 views
How many atoms of carbon are needed to produce 0.45 mol Al?
3C + 2Al2O3 4Al + 3CO2 A. 2.6 × 1026 atoms B. 9.7 × 1024 atoms C.
6 answers
asked by
emma
2,667 views
How many grams of oxygen are in 40.1 g of calcium hydroxide?
options: 17.3 g 8.64 g 20.1 g 0.541 g 11.2 g
5 answers
asked by
ABCD
3,743 views
How many mol of NaHCO3 are in a 454 g box of baking soda (NaHCO3)?
A. 3.81 x 10^4 mol NaHCO3 B. 1.85 x 10^–1 mol NaHCO3 C. 5.40
10 answers
asked by
Michael
3,891 views
Consider the reaction.
4Fe(s) + 3O2(g) �¨ 2Fe2O3(s) If 0.500 mol of Fe reacts with 0.400 mol of O2, what are the limiting
4 answers
asked by
Lisa
4,948 views
What volume of 0.344 M K3PO4 is required to
react with 79 mL of 0.87 M MgCl2 according to the equation 2 K3PO4 + 3 MgCl2 →
1 answer
asked by
jordan
308 views
If 0.50 mol of Na3PO4 is mixed with 0.30 mol
of BaCl2, the maximum number of moles of barium phosphate which can be formed is:
3 answers
asked by
Anonymous
1,353 views
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