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CHEM HELP! The flask shown in the picture at the link below contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The...?
HELP CHEM HELP! I'M STUCK!
The flask shown in the picture at the link below contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.320 M NaOH.
How would I find the mL of NaOH and the Molarity(M) of HCl?
1 AnswerChemistry5 years agoWhat is the volume in the middle of 7.0 gal pail? Conversion factors: 1 gal=4 qts 1qt=0.9464 L?
What is the volume in the middle of 7.0 gal pail? Conversion factors: 1 gal=4 qts
1qt=0.9464 L
I do not know how my professor got 2.65X10^4 mL I think she got it wrong tbh.
1 AnswerChemistry5 years agoStory Problem:Measured rate of crystal growth is 1mm in 16 months.The Crystals are believed to be 400,000 yrs. old. How long in meters?
Story Problem:Measured rate of crystal growth is 1 mm in 16 months.The Crystals are believed to be 400,000 yrs. old. How long must the crystals be in meters?
Help! I'm stuck!
2 AnswersHomework Help5 years agoStory Problem:Measured rate of crystal growth is 1mm in 16 months.Crystals are believed to be 400,000 yrs. old. How long in meters?
Story Problem:Measured rate of crystal growth is 1mm in 16 months.The Crystals are believed to be 400,000 yrs. old. How long must the crystals be in meters?
Help! I'm stuck!
1 AnswerMathematics5 years agoHelp stuck in Converting Fahrenheit of 135; to Celsius and Kelvin. Using Significant Figures!?
Help stuck in Converting Fahrenheit of 135; to Celsius and Kelvin. Using Significant Figures!
Please explain, I have a quiz coming up and I really want to learn!
2 AnswersChemistry5 years agoInvesting in Stocks: Is it possible to manage both short & long term investment? Would it be more expensive & time consuming?
Investing in Stocks: Is it possible to manage both short & long term investment? Would it be more expensive & time consuming? Please need some good advice!
2 AnswersInvesting5 years agoHelp! Hardy Weinberg Equilibrium + Allele Frequencies?
A simple Mendelian trait has two alleles, D and d. if a population is in hardy-weinberg equilibrium and is 49 percent homozygous dominant, what percentage is heterozygous. What are the allele frequencies in this population
If you know the allele frequencies for a particular gene in a population, can you calculate the genotypic frequencies for a population?
1 AnswerBiology5 years agoBIO HELP! Hardy-Weinberg Equilibrium!?
In a population that is 10 percent AA, 20 percent Aa, and 70 percent aa, what is the frequency of allele A? of a?
If A and a are the only alleles at the gene A locus, does the population seem to be a Hardy-Weinberg equilibrium?
2 AnswersBiology5 years agoIn a population that is 10 percent AA, 20 percent Aa, and 70 percent aa, what is the frequency of allele A? of a?
Genetic/Bio Help!
In a population that is 10 percent AA, 20 percent Aa, and 70 percent aa, what is the frequency of allele A? of a?
How would I calculate this? Please explain!
1 AnswerBiology5 years agoWhich is correct complementary DNA sequence to this strand of DNA? ATT CGC TTA?
Which is correct complementary DNA sequence to this strand of DNA? ATT CGC TTA
HELP! PLEASE EXPLAIN!
2 AnswersBiology5 years ago10PTS BIO HELP! What gametes would an individual with a genotype RR make?
WOULD IT BE
A) RR
b) Rr
c) R
d) rr
3) r
1 AnswerBiology5 years agoTwo pea plants, Rr & RR are crossed. What are the genotypes and phenotypes of the F1 offspring?Did segregation of alleles occur? Indepen..?
Two pea plants, Rr & RR are crossed. What are the genotypes and phenotypes of the F1 offspring?Did segregation of alleles occur? Independent assortment of alleles occur?
Please explain! I'm stuck!
1 AnswerBiology5 years agoWhat role does Carbon Dioxide & Alcohol play on fermentation? 10PTS!?
What role does Carbon Dioxide play on fermentation?
A) It is both an enzyme and a reagent.
B) It is a reagent.
C) It is a enzyme.
D) It is a product.
How about the role of Alcohol?
Please Help! I'm stuck!!
1 AnswerBiology6 years agoBiology Help! Put the following in order from Smallest to Largest...Nucleus,Protein,Atom,Lipid,Eukaryotic cell, small molecule, virus,etc..?
Put the following in order from Smallest to Largest...
Nucleus
Protein
Atom
Lipid
Eukaryotic cell
Small molecule
Virus
Mitochondrion
Bacteria
Ribosome
I think it's Atom<molecule<Protein<Virus...and that's what I got so far, but the rest I'm stuck on! Help!
1 AnswerBiology6 years agoNinhydrin reacts with a mixture of amino acids and turns purple. Could proline be one of the amino acids? How could you find out if the...?
Ninhydrin reacts with a mixture of amino acids and turns purple. Could proline be one of the amino acids? How could you find out if the mixture contained proline?
Is it because proline can't react with ninhydrin therefore, it can't make the purple coloration?
1 AnswerChemistry6 years agoIn your experiment that tests the pH values of household cleaners, what is your dependent variable?
In your experiment that tests the pH values of household cleaners, what is your dependent variable?
Is it
A) The pH values
B)The time of day at which the experiments are conducted.
C)The temperature of the laboratory.
D)The household cleaners
Help!! I'm stuck!
1 AnswerChemistry6 years agoWhen you are testing the pH values of a variety of household cleaners, what would be your Null Hypothesis?
When you are testing the pH values of a variety of household cleaners, what would be your Null Hypothesis?
Would it be:
A) The household cleaners will differ in pH.
or
B) The household cleaners will not differ in pH.
Help Chemists! I'm stuck!
1 AnswerChemistry6 years agoWhat is the [OH-], [H+], and pH of a 0.11 M KOH solution?
Assuming complete ionization, how do I find the [OH-], [H+], and pH of a 0.11 M KOH solution?
Please help! Test tomorrow!
2 AnswersChemistry6 years ago[H+][OH-] =1 X 10-14, how would I find the [H+]=? [OH-]=? pH=? In a neutral solution?
[H+][OH-] =1 X 10-14, how would I find the [H+]=? [OH-]=? pH=? In a neutral solution?
Help! I'm so confused! Please explain so I can learn!
2 AnswersChemistry6 years agoBiology problem help! 10 pts!?
A gardener planted pink hydrangeas in his yard last year, but this year when the flowers bloomed they were blue. He doesn't understand what happened. He took good care of the plants and mulched them with pine straw, just like the gardening encyclopedia said. What happened to his plants? How could he make them produce pink blooms again?
2 AnswersBiology6 years ago