# Posts by chin

Total # Posts: 16

**General chemistry **

Calculate the molarity of 500.0 ml solution containing 26.5g Na2CO3

**General chemistry **

How many grams of potassium sulfate are needed to prepare 150 ml of a 6.50 m/v% potassium sulfate solutions

**General chemistry **

What is the m/m% of NaOH in a solution prepared with 40.0 g NaOH and 400.0 g of water

**MATH; STANDARD DEVIATION**

suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000 use 68-95-99.7 rule to find the percentage of buyers who paid: between $150,000 and $152,000 if the standard deviation is $1200

**trig**

explain how you will find the coordinate of P(14pi/3) if you knew the coordinate of P(pi/3)

**chemistry**

Which metal,Pd or Pt has the lowest specific heat?Explain why, using the law of Dulong and Petit.

**food engineeirng**

i intend to take the course of food engineering.may i noe tat is food engineering more suitable to bio or physics students?

**Chemistry**

One commercial method used to peel potatoes is to soak them in a solution of NaOH for a short time, remove them from the NaOH, and spray off the peel. The concentration of NaOH is normally in the range of 3 to 6 M. The NaOH is analyzed periodically. In one such analysis, 45.7 ...

**math**

all it have is to simplify

**math**

workout 3 over y subtract 2 over y-2

**MATH**

3/y - 2/y-2

**MATH**

12oo students attend a school the ratio of teachers to students is 1 : 30 . How many teacher

**MATH**

Maribel how did u got this -189=12a+3b ------------ -84=-7a 12=a

**math**

A stadium have to section a & B . tickets for section A cost $A each . tickets for section B cost $B each . johanna paid $105 for 5 section A and 3 section B. raiyah paid $63 for 4 section A and 1 section B . i) Write two eguations ii) Calculate the value of A and B

**Chemistry**

What could be the effects of carbonate error on the calculated values for the standardization and the sample analysis? What could be the requirements for a compund to be able to undergo double indicator titration? IF the standardization AND sample analysis is done with the ...

**Chemistry**

1. Why cannot NaOH be used as primary standard for HCl? 2. Aside from carbonates, what other compounds can be analyzed using the double indicator method? What are the requirements for a sample to be analyzed using the double indicator method? 3. what is a carbonate error? ...

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