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pH 3 is 10^-3 and pH 7 is 10^-7 which is the same as saying 0.001/0.0000001 which equals 10,000!

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Can you use a 175w Mh bulb with a 150w mh Ballast?

No, you cannot use a 175W metal halide (MH) bulb with a 150W MH ballast. The ballast is designed to operate a specific wattage of bulb, and using a bulb with a higher wattage than the ballast can cause overheating, reduced efficiency, or damage to both the bulb and the ballast. For optimal performance and safety, it’s best to match the wattage of the bulb with the corresponding ballast.


Is there a difference between ni-cd batteries and ni-mh batteries?

Quite a few differences. Nickel-metal-hydride (ni-mh) batteries: Charge Faster; Hold a charge longer; Have far less 'memory effect'; Last longer; But are generally more expensive. Ni-mh batteries are by far the better choice.


How do you convert WmK to KcalmhC?

To convert W/mK (watts per meter Kelvin) to kcal/mh°C (kilocalories per meter hour Celsius), you can use the following formula: 1 W/mK = 8.597 kcal/mh°C. Using the conversion factor, you can multiply the value in W/mK by 8.597 to obtain the equivalent value in kcal/mh°C.


What are the best ni-mh AA rechargeable batteries for solar lights?

The best Ni-MH AA rechargeable batteries for solar lights are typically those with high capacity and low self-discharge rates, such as brands like Panasonic Eneloop or EBL. These batteries can provide long-lasting power for solar lights and are designed to be recharged multiple times.


Can nickel metal hydride battery be substituted for nickel cadium?

Yes, nickel metal hydride (Ni-MH) batteries can generally be a direct substitute for nickel cadmium (Ni-Cd) batteries. Ni-MH batteries have higher energy density, less toxicity, and no memory effect compared to Ni-Cd batteries, making them a popular alternative choice. However, it is essential to check compatibility, voltage, and charging requirements before substituting one for the other.