J.R. S.

Chemistry

01/07/21

How many moles of glucose (MW 180 amu) are in 90,000 mg?

How many moles of glucose (MW 180 amu) are in 90,000 mg?a, 4 moles b, 1 mole c, 2 moles d, 0.5 moles

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Chemistry

01/07/21

Which of the following statements has the most molecules?

Which of the following statements has the most molecules? a, 100 picomoles of glucose b, 1 mole of glucose c, 100 micromoles of glucose d, 10000 millimoles of glucose

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Chemistry

01/07/21

How many moles of NaCl (NW =58 g) are in 29 microgram of NaCl?

How many moles of NaCl (NW =58 g) are in 29 microgram of NaCl? a,5 x 10^-7 moles b, 5 x 10^-5 moles c, 2 x 10^-7 moles d, 2 x 10^-6 moles

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Chemistry

01/06/21

Can you please help me with chemistry?

Acetylene C2H2 gas and oxygen O2 gas react to form carbon dioxide CO2 gas and water H2Ovapor. Suppose you have 13.0 mol of C2H2 and 11.0 mol of O2 in a reactor. Calculate the largest amount... more

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Chemistry

01/06/21

Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction.

Liquid octane CH3CH26CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. Suppose 8.0 g of octane is mixed with 8.96 g of oxygen. Calculate the maximum... more

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Chemistry

01/06/21

Calculate the largest amount of AlCl3 that could be produced.

Solid aluminum Al and chlorine Cl2 gas react to form solid aluminum chloride AlCl3. Suppose you have 7.0 mol of Al and 2.0 mol of Cl2 in a reactor.Calculate the largest amount of AlCl3 that could... more

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Chemistry

01/06/21

The question will be put in the description as it takes up too many characters in the title text box. The question that will be stated is a chemistry question.

you need to prepare a 4m concentrated solution for a lab and only need 500 ml of total solution. if you use enough water to bring the volume to 500 ml, how many grams of sodium chloride would you... more

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Chemistry

01/06/21

What mass of carbon dioxide is consumed by the reaction of 3.8g of water?

Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction in which water H2O and carbon dioxide CO2 chemically react to form the simple sugar... more

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Chemistry

01/06/21

Al 2 (SO 3 ) 3 + 6NaOH-- Na 2 SO 3 + 2Al(OH) 3

Al 2 (SO 3 ) 3 + 6NaOH-- Na 2 SO 3 + 2Al(OH) 3a) Calculate the limiting reactant if 12 g of Al 2 (SO 3 ) 3 is reacting with 12 g of NaOH.b) Calculate the number of grams of Al(OH) 3 produced.c)... more

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Chemistry

01/06/21

I need help with these chemistry problems

The Ka for cyanic acid (HCN) is 6.2 x 10-10. Determine the pH of a 0.025 M NH4CN salt solution. Which of the following expressions correctly gives the Kb for the fluoride ion, based on the... more

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Chemistry

01/05/21

Explain how finding the molar mass of a covalent compound differs from finding the molar mass of an ionic compound. Use examples in your explanation.

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Chemistry

01/05/21

Calculate the volume

Calculate the volume in mL of a 50 mg/mL ampicillin stock solution required to make 600 mL of LB with a final concentration of ampicillin at 100 ug/mL. Answer in one decimal place.

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Chemistry

01/05/21

Calculate volume

A technician is asked to prepare a dilution of a common laboratory disinfectant. The label indicates that a 1:39 dilution in water is required prior to use. Calculate the volume in mL of... more

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Chemistry Biochemistry Organic Chemistry

01/05/21

Formula of Copper(II) Sulfate Hydrate Lab

Data: Mass of empty dish: 50.58 gmass of crystals and dish: 55.63mass of crystals after first heating: 54.57mass of crystals after second heating: 53.82mass of crystals after third heating:... more

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Chemistry

01/05/21

Calculate volume of a solution

Calculate the volume in mL of a 10 M NaOH stock solution required to make 500 mL of 100 mM NaOH? Answer should be in one decimal place

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Chemistry

01/05/21

Classify reaction (select all that apply)

Mg(s)+Ni(NO3)2(aq)Select all that apply-no reaction occurred-double displacement-endothermic-exothermic-gas production-neutralization-precipitation-redox-simple displacement

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Chemistry

01/05/21

Classify Reaction (Select all that apply)

Al(s)+HCl(aq)Select all that apply-no reaction occurred-double displacement-endothermic-exothermic-gas production-neutralization-precipitation-single displacement-redox

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Answers •1

Chemistry

01/05/21

Classify Reaction (Select all that apply)

Mg(s)+H2SO4(aq)Select all that apply-no reaction occurred-double displacement-endothermic-exothermic-gas production-neutralization-precipitation-redox-simple displacement

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Answers •1

Chemistry Organic Chemistry

01/05/21

is ethylene was mixed with oxygen in a combustion reaction, how much carbon dioxide would be produced from 20g of ethylene?

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Answers •2

Chemistry

01/05/21

For the reaction of sodium hydrogen carbonate with hydrofluoric acid, are the products or reactants favored.

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Answers •1

Chemistry

01/04/21

What volume is occupied by 2.719 x 10^13 moles of methane gas, CH4?

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Answers •1

Chemistry

01/04/21

how do you round to the correct number of significant figures?

for example: 37.26, 0.0015

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Answers •1

Chemistry

01/04/21

I can't figure out these chemistry problems

1. When 1.0 M solutions of the substances listed below are arranged in order of decreasing pH the order is NH3 HCl NaOH CH3COOH NaOH, NH3, CH3COOH, HCl NH3, NaOH, HCl, CH3COOH CH3COOH, HCl,... more

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Chemistry

01/04/21

what is the mass of 3x1024 particles of ethylene?

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Answers •2

Chemistry

01/04/21

if 40 grams of ethylene was mixed with 40 grams of oxygen how much carbon dioxide would be produced?

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Answers •1

How many moles of glucose (MW 180 amu) are in 90,000 mg?

Which of the following statements has the most molecules?

How many moles of NaCl (NW =58 g) are in 29 microgram of NaCl?

Can you please help me with chemistry?

Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction.

Calculate the largest amount of AlCl3 that could be produced.

The question will be put in the description as it takes up too many characters in the title text box. The question that will be stated is a chemistry question.

What mass of carbon dioxide is consumed by the reaction of 3.8g of water?

Al 2 (SO 3 ) 3 + 6NaOH-- Na 2 SO 3 + 2Al(OH) 3

I need help with these chemistry problems

Explain how finding the molar mass of a covalent compound differs from finding the molar mass of an ionic compound. Use examples in your explanation.

Calculate the volume

Calculate volume

Formula of Copper(II) Sulfate Hydrate Lab

Calculate volume of a solution

Classify reaction (select all that apply)

Classify Reaction (Select all that apply)

Classify Reaction (Select all that apply)

is ethylene was mixed with oxygen in a combustion reaction, how much carbon dioxide would be produced from 20g of ethylene?

For the reaction of sodium hydrogen carbonate with hydrofluoric acid, are the products or reactants favored.

What volume is occupied by 2.719 x 10^13 moles of methane gas, CH4?

how do you round to the correct number of significant figures?

I can't figure out these chemistry problems

what is the mass of 3x1024 particles of ethylene?

if 40 grams of ethylene was mixed with 40 grams of oxygen how much carbon dioxide would be produced?

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