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Kino
stats help ?
could not figure out this question for stats, pls help
Suppose that the New England Colonials baseball team is equally likely to win a game as not to win it. If 5 Colonials games are chosen at random, what is the probability that exactly 3 of those games are won by the Colonials?
2 AnswersMathematics7 months agocontinuous vs. discrete?
Hello, I'm a little confused about my stats homework, pls help!
so I know that discrete means whole numbers while continuous means intervals and/or real numbers but I'm not sure about these because they "specified on the units" so even if you were like 53 inches or something, does that mean the cm, and mm do not count in that case and you would round to a whole number?:
height (in inches) : discrete or continuous
the average number of hours of sleep each night: discrete or continuous
2 AnswersMathematics8 months agochem 104: acids and bases question?
The reaction of the weak acid HCN with the strong base KOH is HCN(aq)+KOH(aq)⟶HOH(l)+KCN(aq). To compute the pH of the resulting solution if 47 mL of 0.46 M HCN is mixed with 31 mL of 0.40 KOH, we need to start with the stoichiometry.
How many moles of the excess reactant after reaction? number of moles:
What is the concentration of the excess reactant after reaction? concentration:
What is the concentration of the pH active product after reaction? concentration:
1 AnswerChemistry11 months agoAcids and Bases Chem Help?
If the 𝐾a of a monoprotic weak acid is 4.0×10−6, what is the [H+] of a 0.28 M solution of this acid? In other words, [H+]=?
I keep getting 2.975 for [H+] but apparently it isn't the answer. someone please help :((
3 AnswersChemistry11 months agoChem help!!?
A galvanic (voltaic) cell consists of an electrode composed of iron in a 1.0 iron(II) ion solution and another electrode composed of silver in a 1.0 M silver ion solution, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C. Refer to the list of standard reduction potentials.
1 AnswerChemistry1 year agoConsider these two entries from a fictional table of standard reduction potentials below?
X3++3e−⟶X(s)𝐸o=−1.52 V
Y3++3e−⟶Y(s)𝐸o=−0.34 V
What is the standard potential of a galvanic (voltaic) cell where X is the anode and Y is the cathode?
Chemistry1 year agoCalculate the standard cell potential, 𝐸∘cell, for the reaction shown below?
Cu(s)+Ag+(aq)⟶Cu+(aq)+Ag(s)
1 AnswerChemistry1 year agoCalculate 𝐸∘ for the following equation: ?
Use these standard potentials.
ClO−4(aq)+6H3O+(aq)+6Br−(aq)⟶3Br2(aq)+ClO−(aq)+9H2O(l)
Chemistry1 year agoSelect the statements below that are false and think about why they are not true.?
a. If a chemical reaction is spontaneous, then the ΔS(sys) must always be positive.
b. If a chemical reaction with a negative ΔS(sys) is spontaneous, then ΔS(surr) must be positive.
c. If a chemical reaction is spontaneous, then the ΔE(univ)
must be increasing.
d. We do not need to worry about spontaneous reactions because they are rare.
1 AnswerChemistry1 year ago